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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Local Citation Network</title>
<meta name="description" content="This web app aims to help scientists with their literature review using reference data from OpenAlex, Semantic Scholar, OpenCitations and Crossref. It visualizes citation networks defined by the references (and citations) of a given set of Input Articles, where the Top References (and Top Citations) are suggested for further review.">
<meta name="author" content="Tim Woelfle">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="lib/buefy.min.css">
<script src="lib/vue.min.js"></script>
<script src="lib/buefy.min.js"></script>
<script src="lib/vis-network.min.js"></script>
<style>
[v-cloak] {
display: none;
}
::-webkit-scrollbar {
height: 6px;
width: 6px;
}
::-webkit-scrollbar-thumb {
background: #999;
border-radius: 1ex;
}
html {
font-size: 9pt;
overflow-y: auto;
}
.retracted, .retracted a {
background-color: #a00;
color: #fff;
}
.retracted::after {
content: " (RETRACTED!)"
}
/* Flexible height management */
.columns {
padding: 0;
margin: 0;
}
.column, .b-tabs:not(:last-child), .columns:not(:last-child) {
margin-bottom: 0;
padding-bottom: 0;
}
.b-tabs .tab-content {
padding: 0;
}
.b-tabs:first-child .tab-content {
padding-left: 1rem;
}
div.content {
padding-top: 10px
}
.tab-item {
height: calc(100vh - 8.5rem);
overflow-x: hidden;
overflow-y: auto;
}
section.hero.is-fullheight {
min-height: 90vh;
}
/* Menu */
li.navbar-item {
padding: 0.5rem 0.2rem
}
.navbar-end button, h2 button {
width: 40px;
}
.navbar-end .buttons .button {
width: 45px
}
h2 label.upload {
display: inline
}
/* Hoverable h2 tabs */
li h2.title {
color: #999999;
}
li.is-active h2.title, li h2.title:hover {
color: #000000;
}
/* Icon replacements */
.b-table .table tr.is-selected .chevron-cell > a {
color: #fff !important;
}
.mdi-chevron-left:before {
content: "❰";
font-style: normal;
}
.mdi-chevron-right:before {
content: "❯";
font-style: normal;
}
.mdi-magnify:before {
content: "🔍";
font: 1.3em bold sans-serif;
}
.mdi-close:before {
content: "×";
font: 2.3em bold sans-serif;
}
/* Vis.js Network tooltip */
div.vis-tooltip {
font-size: 0.8em;
white-space: normal;
max-width: 250px;
word-wrap: break-word;
padding: 5px;
}
</style>
</head>
<body>
<section id="app" v-cloak>
<b-navbar style="border-bottom: 1px solid #dbdbdb; overflow-x:auto; overflow-y: hidden;">
<template slot="brand">
<a class="navbar-item" href="">
<h1 class="title">Local Citation Network</h1>
</a>
</template>
<template slot="start">
<ul class="buttons">
<b-navbar-item tag="li" v-for="item, index in graphs" :key="index" class="navbar-item">
<b-button :type="(index==currentTabIndex) ? 'is-primary' : ''" :title="item.tabTitle" @click="setCurrentTabIndex(index)" rounded>
{{ item.tabLabel }} ({{ abbreviateAPI(item.API) }})
<a title="Close tab" class="delete" @click.stop="clickCloseTab(index)"></a> <!-- .stop prevents event propagation to parent @click event -->
</b-button>
</b-navbar-item>
<b-navbar-item tag="li">
<b-button v-if="isLoading" disabled rounded style="width: 130px">
<b-progress :value="(isLoadingTotal > 1) ? isLoadingIndex/isLoadingTotal*100 : undefined" size="is-large" show-value format="percent" :precision="0" title="To cancel loading activate 'Save' button on the right and refresh page." style="width: 100px"></b-progress>
</b-button>
</b-navbar-item>
</ul>
</template>
<template slot="end">
<ul class="buttons">
<b-navbar-item tag="li"><b-button @click="clickButtonAdd" rounded type="is-dark" title="Add network based on references from a single source DOI" :disabled="isLoading"><span style="font-size: 1.8em; line-height: 0.9 ">+</span></b-button></b-navbar-item>
<b-navbar-item tag="li"><b-upload v-model="file" :disabled="isLoading"><a class="button is-dark is-rounded" title="Scan plain text file for DOIs" :disabled="isLoading" style="margin: 0 0 6px 0"><span style="font-size: 1.2em">File</span></a></b-upload></b-navbar-item>
<b-navbar-item tag="li"><b-button @click="clickCloseAllTabs" rounded type="is-dark" title="Close all tabs" :disabled="!graphs.length"><span style="font-size: 1.2em">Close</span></b-button></b-navbar-item>
<b-navbar-item tag="li"><b-button @click="clickToggleAutosave" rounded :type="(autosaveResults) ? '' : 'is-dark'" title="Autosave results locally (only up to 100 References & Citations are kept because of space constraints - if all are needed, use 'download full network: JSON')"><span style="font-size: 1.2em">Save</span></b-button></b-navbar-item>
<b-navbar-item tag="li"><b-button @click="showOptionsAPI = !showOptionsAPI" rounded type="is-dark" title="API Options: OpenAlex (OA) / Semantic Scholar (S2) / OpenCitations (OC) / Crossref (CR)" :disabled="isLoading"><span style="font-size: 1.2em">{{ abbreviateAPI(API) }}</span></b-button></b-navbar-item>
<b-navbar-item tag="li"><b-button @click="showFAQ = !showFAQ" rounded type="is-dark" title="Frequently asked questions"><span style="font-size: 1.8em">?</span></b-button></b-navbar-item>
<b-navbar-item tag="li"><a @click="indexFAQ = 'contact'; showFAQ = true;" href="#contact" class="button is-dark is-rounded" title="Contact app creator"><span style="font-size: 1.2em">Mail</span></a></b-navbar-item>
</ul>
</template>
</b-navbar>
<div class="section columns" v-if="currentTabIndex !== undefined">
<b-tabs v-model="showArticlesTab" :class="'column' + (fullscreenTable ? '' : ' is-three-fifths')" size="is-small" :style="'display: ' + ((fullscreenNetwork) ? 'none' : 'block')">
<b-tab-item value="inputArticles">
<template slot="header">
<h2 class="title is-4">Input Articles ({{ currentGraph.input.length }})</h2>
</template>
<div class="content">
<p>
<a @click="fullscreenTable = !fullscreenTable; if (fullscreenTable) resetBothNetworks(); else initCurrentNetwork();" title="Toggle table fullscreen">{{ (fullscreenTable) ? 'show networks' : 'fullscreen table' }}</a> /
download<template v-if="filterString"> filtered</template> input articles: <b-tooltip dashed position="is-bottom" type="is-dark" label="Open in spreadsheet editor (e.g. Microsoft Excel)"><a @click="downloadCSVData(inputArticlesFiltered)">CSV</a></b-tooltip>, <b-tooltip dashed mulitlined position="is-bottom" type="is-dark" label="Open in reference manager (e.g. Zotero)"><a @click="downloadRISData(inputArticlesFiltered)">RIS</a></b-tooltip> /
<!-- Make sure network is fully loaded (otherwise incomingSuggestions / outgoingSuggestions tabs would show eternal spinning wheels) -->
<template v-if="currentGraph.incomingSuggestions && currentGraph.outgoingSuggestions">
download full network:
<b-tooltip dashed multilined position="is-bottom" type="is-dark"
label="Can be reloaded through the 'File' button at the top right">
<a @click="downloadJSON">JSON</a>
</b-tooltip>
</template>
</p>
<p>
<template v-if="currentGraph.source.id">
Based on the
<template v-if="currentGraph.source.customListOfReferences">
<a v-if="currentGraph.bookmarkletURL" @click="indexFAQ = 'bookmarklet'; showFAQ = true;" href="#bookmarklet">bookmarklet-derived</a>
custom list of
</template>
references of the following source article (◆)
</template>
<template v-else>
Based on the following custom list: {{ currentGraph.tabLabel }}
</template>
(<b-tooltip dashed multilined position="is-bottom" type="is-dark"
label="Copy this link's address and share - network data will be retrieved from scratch (Right-click → 'Copy Link')">
<a :href="linkToShareAppendix" @click="e => e.preventDefault()">link to share</a>
</b-tooltip>)
</p>
<p v-if="currentGraph.source.id">
<b-tooltip dashed multilined position="is-bottom" type="is-dark"
:label="authorString(currentGraph.source.authors)"
v-if="currentGraph.source.authors.length > 5">
{{ authorStringShort(currentGraph.source.authors) }}.
</b-tooltip>
<template v-else>
{{ authorStringShort(currentGraph.source.authors) }}.
</template>
<a :href="currentGraph.bookmarkletURL || articleLink(currentGraph.source)" target="_blank"><em :class="{ retracted: currentGraph.source.isRetracted }">{{ currentGraph.source.title }}</em></a>. {{ currentGraph.source.journal }}. {{ currentGraph.source.year }}.
<a @click="selected = currentGraph.input.filter(x => x.isSource)[0]">(select)</a>
</p>
<p>
Data retrieved through <a @click="indexFAQ = 'switch-api'; showFAQ = true;" href="#switch-api">{{ currentGraph.API + ' (' + abbreviateAPI(currentGraph.API) + ')' }}</a> API on {{ new Date(currentGraph.timestamp).toLocaleDateString() }}
<b-tooltip dashed multilined type="is-dark" position="is-bottom" :label="completenessLabel">
<a @click="indexFAQ = 'completeness'; showFAQ = true;" href="#completeness"
:style="'color: ' + ((completenessPercent > 40) ? '' : '#ff3860')">
(estimated completeness: {{ completenessPercent }}%)
</a>
</b-tooltip>
</p>
</div>
<b-field>
<b-select v-model="filterColumn">
<option value="titleAbstract">Title, Abstract, ID</option>
<option value="authors">Authors</option>
<option value="year">Year</option>
<option value="journal">Journal</option>
<option value="citedById">Cited by ID</option>
<option value="citingId">Citing ID</option>
</b-select>
<b-input v-model="filterString" icon="magnify" placeholder="Filter articles…" expanded
:icon-right="filterString ? 'close' : undefined"
icon-right-clickable
@icon-right-click="filterString=''"></b-input>
<span class="button is-static" style="border-radius: 0">{{ inputArticlesFiltered.length + " / " + currentGraph.input.length }}</span>
<b-select v-model="articlesPerPage">
<option value="10">10 per page</option>
<option value="20">20 per page</option>
<option value="50">50 per page</option>
<option value="100">100 per page</option>
</b-select>
</b-field>
<b-table ref="inputArticlesTable" :data="inputArticlesFiltered" :selected.sync="selectedInputArticle" :current-page.sync="inputArticlesTablePage"
default-sort="inDegree" default-sort-direction="desc"
@keyup.native.arrow-left="toggleArticle"
@keyup.native.arrow-right="toggleArticle"
@keydown.native.arrow-up.capture="tableArrowUpChangePage"
@keydown.native.arrow-down.capture="tableArrowDownChangePage"
detailed :has-detailed-visible="row => (row.authors.length || inDegree(row.id) || outDegree(row.id) || row.abstract || row.tldr)"
hoverable striped narrowed focusable
:paginated="inputArticlesFiltered.length > articlesPerPage" :per-page="articlesPerPage" pagination-position="both">
<template slot="detail" slot-scope="props">
<p class="content">
<b-button v-if="(props.row.referencesCount || props.row.references?.length) && !props.row.isSource"
@click.stop="clickOpenReferences(props.row)"
:disabled="isLoading">
Add network for references
</b-button>
<b-button v-if="currentGraph.incomingSuggestions?.length && ((currentGraph.allReferences) ? (props.row.referencesCount || props.row.references?.length) : citedByInputArticleId(currentGraph.incomingSuggestions, props.row.id).length)"
@click="showArticlesTab='topReferences'; filterColumn='citedByInputArticleId'; filterString=props.row.id">
Filter References ({{ citedByInputArticleId(currentGraph.incomingSuggestions, props.row.id).length }})
</b-button>
<b-button v-if="currentGraph.outgoingSuggestions?.length && ((currentGraph.allCitations) ? props.row.citationsCount : citesInputArticleId(currentGraph.outgoingSuggestions, props.row.id).length)"
@click="showArticlesTab='topCitations'; filterColumn='citesInputArticleId'; filterString=props.row.id">
Filter Citations ({{ citesInputArticleId(currentGraph.outgoingSuggestions, props.row.id).length }})
</b-button>
<b-button v-if="outDegree(props.row.id)"
@click="showArticlesTab='inputArticles'; filterColumn='citedById'; filterString=props.row.id">
Filter Input Articles cited by this ({{ outDegree(props.row.id) }})
</b-button>
<b-button v-if="inDegree(props.row.id)"
@click="showArticlesTab='inputArticles'; filterColumn='citingId'; filterString=props.row.id">
Filter Input Articles citing this ({{ inDegree(props.row.id) }})
</b-button>
</p>
<p class="content" v-if="props.row.authors.length">
<b>Authors ({{ props.row.authors.length }}):</b>
<template v-for="(author, index) in props.row.authors">
<template v-if="index !== 0">; </template>
<b-tooltip
multilined
type="is-light"
:triggers="['click']"
:auto-close="['outside', 'escape']">
<template v-slot:content>
<template v-if="author.affil">{{ author.affil }}<br></template>
<a :href="'https://orcid.org/' + author.orcid" v-if="author.orcid" target="_blank">ORCID</a>
<a :href="author.url" v-if="author.url" target="_blank">Homepage</a>
<a :href="'https://openalex.org/' + author.id" v-if="author.id && currentGraph.API === 'OpenAlex'" target="_blank">OpenAlex</a>
<a :href="'https://semanticscholar.org/author/' + author.id" v-if="author.id && currentGraph.API === 'Semantic Scholar'" target="_blank">Semantic Scholar</a>
<a :href="'https://scholar.google.com/scholar?q=' + authorString([author])" target="_blank">Google Scholar</a>
</template>
<a>{{ authorString([author]) }}</a>
</b-tooltip>
</template>
</p>
<p v-if="props.row.tldr"
v-html="'<b><a href="https://www.semanticscholar.org/faq#tldr" target="_blank" title="TLDR is an AI-generated summarization provided by Semantic Scholar.">TLDR: </a></b>' + formatTags(props.row.tldr)"
class="content"></p>
<template v-if="props.row.abstract">
<h4 class="title is-6">Abstract</h4>
<p v-html="formatTags(props.row.abstract)" class="content"></p>
</template>
<template v-if="currentGraph.source.referenceContexts?.[props.row.id]?.length">
<h4 class="title is-6">Reference contexts in source article, {{ currentGraph.source.authors[0].LN + ' ' + currentGraph.source.year }} (experimental):</h4>
<ul style="list-style-type: disc">
<li v-for="context in currentGraph.source.referenceContexts[props.row.id]">{{ context }} -{{ currentGraph.source.authors[0].LN + ' ' + currentGraph.source.year }}</li>
</ul>
</template>
</template>
<b-table-column field="numberInSourceReferences" label="#" :meta="currentGraph.source.id ? 'Original reference number in source' : 'Number in custom list'" :visible="showNumberInSourceReferences" sortable>
<template v-slot:header="{ column }">
<b-tooltip :label="column.meta" dashed position="is-right" type="is-dark">
{{ column.label }}
</b-tooltip>
</template>
<template v-slot="props">
{{ (props.row.isSource) ? '' : props.row.numberInSourceReferences }}
</template>
</b-table-column>
<b-table-column label="Title" v-slot="props">
<!-- id is for scrolling to row when network node is clicked -->
<span :id="props.row.id" :class="{ retracted: props.row.isRetracted }">
{{ (props.row.id === currentGraph.source?.id) ? 'Source: ' : '' }}
<a v-if="articleLink(props.row)" :href="articleLink(props.row)" target="_blank" v-html="formatTags(props.row.title) || props.row.doi || props.row.id"></a>
<span v-else v-html="formatTags(props.row.title) || props.row.doi || props.row.id"></span>
</span>
</b-table-column>
<b-table-column field="authors" label="Author" v-slot="props">
<b-tooltip dashed multilined :label="authorString(props.row.authors)" position="is-left" type="is-dark">
{{ props.row.authors[0]?.LN }}
</b-tooltip>
</b-table-column>
<b-table-column field="year" label="Year" meta="Hover year to see journal" sortable>
<template v-slot:header="{ column }">
<b-tooltip :label="column.meta" dashed position="is-left" type="is-dark">
{{ column.label }}
</b-tooltip>
</template>
<template v-slot="props">
<b-tooltip dashed :label="props.row.journal" position="is-left" type="is-dark">
{{ props.row.year }}
</b-tooltip>
</template>
</b-table-column>
<b-table-column label="Ref" meta="References in paper"
sortable :custom-sort="sortReferencesWrapper">
<template v-slot:header="{ column }">
<b-tooltip :label="column.meta" dashed position="is-left" type="is-dark">
{{ column.label }}
</b-tooltip>
</template>
<template v-slot="props">
<a :href="referencesLink(props.row)" target="_blank" v-if="referencesLink(props.row)">
{{ props.row.referencesCount || props.row.references?.length }}
</a>
<template v-else>
{{ props.row.referencesCount || props.row.references?.length }}
</template>
</template>
</b-table-column>
<b-table-column field="citationsCount" label="Cit" meta="Estimated global incoming citations (how many papers cite this one)" sortable>
<template v-slot:header="{ column }">
<b-tooltip :label="column.meta" dashed position="is-left" type="is-dark">
{{ column.label }}
</b-tooltip>
</template>
<template v-slot="props">
<b-tooltip label="Estimated number of global citations" dashed position="is-left" type="is-dark">
<a :href="citationsLink(props.row)" target="_blank" v-if="citationsLink(props.row)">
{{ props.row.citationsCount }}
</a>
<template v-else>
{{ props.row.citationsCount }}
</template>
</b-tooltip>
</template>
</b-table-column>
<b-table-column field="outDegree" label="OutDeg" meta="Out-Degree: Number of Input Articles cited by this"
sortable :custom-sort="sortOutDegreeWrapper">
<template v-slot:header="{ column }">
<b-tooltip :label="column.meta" dashed position="is-left" type="is-dark">
{{ column.label }}
</b-tooltip>
</template>
<template v-slot="props">
<b-tooltip label="Out-Degree: Number of Input Articles cited by this" dashed position="is-left" type="is-dark">
{{ outDegree(props.row.id) }}
</b-tooltip>
</template>
</b-table-column>
<b-table-column field="inDegree" label="InDeg" meta="In-Degree: Number of Input Articles citing this"
sortable :custom-sort="sortInDegreeWrapper">
<template v-slot:header="{ column }">
<b-tooltip :label="column.meta" dashed position="is-left" type="is-dark">
{{ column.label }}
</b-tooltip>
</template>
<template v-slot="props">
<b-tooltip label="In-Degree: Number of Input Articles citing this" dashed position="is-left" type="is-dark">
{{ inDegree(props.row.id) }}
</b-tooltip>
</template>
</b-table-column>
</b-table>
</b-tab-item>
<b-tab-item value="topReferences" :disabled="currentGraph.incomingSuggestions === undefined" v-if="currentGraph.incomingSuggestions === undefined || currentGraph.incomingSuggestions.length">
<template slot="header">
<h2 class="title is-4">{{ currentGraph.allReferences ? 'All' : 'Top' }} References
(<template v-if="currentGraph.incomingSuggestions?.length">{{ currentGraph.incomingSuggestions?.length }}</template>
<b-progress v-else :value="(isLoadingTotal > 1) ? isLoadingIndex/isLoadingTotal*100 : undefined" size="is-medium" show-value format="percent" :precision="0" style="width: 50px; display: inline-block"></b-progress>)
</h2>
</template>
<div class="content" v-if="currentGraph.incomingSuggestions?.length">
<p>
<a @click="fullscreenTable = !fullscreenTable; if (fullscreenTable) resetBothNetworks(); else initCurrentNetwork();" title="Toggle table fullscreen">{{ (fullscreenTable) ? 'show networks' : 'fullscreen table' }}</a> /
download<template v-if="filterString"> filtered</template> references: <b-tooltip dashed position="is-bottom" type="is-dark" label="Open in spreadsheet editor (e.g. Microsoft Excel)"><a @click="downloadCSVData(incomingSuggestionsFiltered)">CSV</a></b-tooltip>, <b-tooltip dashed mulitlined position="is-bottom" type="is-dark" label="Open in reference manager (e.g. Zotero)"><a @click="downloadRISData(incomingSuggestionsFiltered)">RIS</a></b-tooltip> /
<!-- Make sure network is fully loaded (otherwise incomingSuggestions / outgoingSuggestions tabs would show eternal spinning wheels) -->
<template v-if="currentGraph.incomingSuggestions && currentGraph.outgoingSuggestions">
download full network:
<b-tooltip dashed multilined position="is-bottom" type="is-dark"
label="Can be reloaded through the 'File' button at the top right!">
<a @click="downloadJSON">JSON</a>
</b-tooltip>
</template>
</p>
<p>
References are cited by the Input Articles. They are sorted by in-degree, with the <a @click="indexFAQ = 'top-references'; showFAQ = true;" href="#top-references">Top References</a> listed at the top. They tend to be older than most Input Articles. They are derived through backward citation searching (backward in time). {{ (currentGraph.allReferences) ? 'All References are not de-duplicated and may also contain Input Articles.' : 'Top References are de-duplicated against Input Articles.'}}
</p>
</div>
<b-field>
<b-select v-model="filterColumn">
<option value="titleAbstract">Title, Abstract, ID</option>
<option value="authors">Authors</option>
<option value="year">Year</option>
<option value="journal">Journal</option>
<option value="citedByInputArticleId">Cited by Input Article ID</option>
</b-select>
<b-input v-model="filterString" icon="magnify" placeholder="Filter articles…" expanded
:icon-right="filterString ? 'close' : undefined"
icon-right-clickable
@icon-right-click="filterString=''"></b-input>
<span class="button is-static" style="border-radius: 0">{{ incomingSuggestionsFiltered.length + " / " + currentGraph.incomingSuggestions?.length }}</span>
<b-select v-model="articlesPerPage">
<option value="10">10 per page</option>
<option value="20">20 per page</option>
<option value="50">50 per page</option>
<option value="100">100 per page</option>
</b-select>
</b-field>
<b-table ref="topReferencesTable" :data="incomingSuggestionsFiltered" :selected.sync="selectedIncomingSuggestionsArticle" :current-page.sync="topReferencesTablePage"
default-sort="inDegree" default-sort-direction="desc"
@keyup.native.arrow-left="toggleArticle"
@keyup.native.arrow-right="toggleArticle"
@keydown.native.arrow-up.capture="tableArrowUpChangePage"
@keydown.native.arrow-down.capture="tableArrowDownChangePage"
detailed hoverable striped narrowed focusable
:paginated="incomingSuggestionsFiltered.length > articlesPerPage" :per-page="articlesPerPage" pagination-position="both">
<template slot="detail" slot-scope="props">
<p class="content">
<b-button v-if="(props.row.referencesCount || props.row.references?.length) && !props.row.isSource"
@click.stop="clickOpenReferences(props.row)"
:disabled="isLoading">
Add network for references
</b-button>
<b-button v-if="outDegree(props.row.id)"
@click="showArticlesTab='inputArticles'; filterColumn='citedById'; filterString=props.row.id">
Filter Input Articles cited by this ({{ outDegree(props.row.id) }})
</b-button>
<b-button v-if="inDegree(props.row.id)"
@click="showArticlesTab='inputArticles'; filterColumn='citingId'; filterString=props.row.id">
Filter Input Articles citing this ({{ inDegree(props.row.id) }})
</b-button>
</p>
<p class="content" v-if="props.row.authors.length">
<b>Authors ({{ props.row.authors.length }}):</b>
<template v-for="(author, index) in props.row.authors">
<template v-if="index !== 0">; </template>
<b-tooltip
multilined
type="is-light"
:triggers="['click']"
:auto-close="['outside', 'escape']">
<template v-slot:content>
<template v-if="author.affil">{{ author.affil }}<br></template>
<a :href="'https://orcid.org/' + author.orcid" v-if="author.orcid" target="_blank">ORCID</a>
<a :href="author.url" v-if="author.url" target="_blank">Homepage</a>
<a :href="'https://openalex.org/' + author.id" v-if="author.id && currentGraph.API === 'OpenAlex'" target="_blank">OpenAlex</a>
<a :href="'https://semanticscholar.org/author/' + author.id" v-if="author.id && currentGraph.API === 'Semantic Scholar'" target="_blank">Semantic Scholar</a>
<a :href="'https://scholar.google.com/scholar?q=' + authorString([author])" target="_blank">Google Scholar</a>
</template>
<a>{{ authorString([author]) }}</a>
</b-tooltip>
</template>
</p>
<p v-if="props.row.tldr"
v-html="'<b><a href="https://www.semanticscholar.org/faq#tldr" target="_blank" title="TLDR is an AI-generated summarization provided by Semantic Scholar.">TLDR: </a></b>' + formatTags(props.row.tldr)"
class="content"></p>
<template v-if="props.row.abstract">
<h4 class="title is-6">Abstract</h4>
<p v-html="formatTags(props.row.abstract)" class="content"></p>
</template>
</template>
<b-table-column label="Title" v-slot="props">
<!-- id is for scrolling to row when network node is clicked -->
<span :id="props.row.id" :class="{ retracted: props.row.isRetracted }">
{{ (props.row.id === currentGraph.source?.id) ? 'Source: ' : (inputArticlesIds.includes(props.row.id) ? 'Input Article: ' : '') }}
<a v-if="articleLink(props.row)" :href="articleLink(props.row)" target="_blank" v-html="formatTags(props.row.title) || props.row.doi || props.row.id"></a>
<span v-else v-html="formatTags(props.row.title) || props.row.doi || props.row.id"></span>
</span>
</b-table-column>
<b-table-column field="authors" label="Author" v-slot="props">
<b-tooltip dashed multilined :label="authorString(props.row.authors)" position="is-left" type="is-dark">
{{ props.row.authors[0]?.LN }}
</b-tooltip>
</b-table-column>
<b-table-column field="year" label="Year" meta="Hover year to see journal" sortable>
<template v-slot:header="{ column }">
<b-tooltip :label="column.meta" dashed position="is-left" type="is-dark">
{{ column.label }}
</b-tooltip>
</template>
<template v-slot="props">
<b-tooltip dashed :label="props.row.journal" position="is-left" type="is-dark">
{{ props.row.year }}
</b-tooltip>
</template>
</b-table-column>
<b-table-column label="Ref" meta="References in paper"
sortable :custom-sort="sortReferencesWrapper">
<template v-slot:header="{ column }">
<b-tooltip :label="column.meta" dashed position="is-left" type="is-dark">
{{ column.label }}
</b-tooltip>
</template>
<template v-slot="props">
<a :href="referencesLink(props.row)" target="_blank" v-if="referencesLink(props.row)">
{{ props.row.referencesCount || props.row.references?.length }}
</a>
<template v-else>
{{ props.row.referencesCount || props.row.references?.length }}
</template>
</template>
</b-table-column>
<b-table-column field="citationsCount" label="Cit" meta="Estimated global incoming citations (how many papers cite this one)" sortable>
<template v-slot:header="{ column }">
<b-tooltip :label="column.meta" dashed position="is-left" type="is-dark">
{{ column.label }}
</b-tooltip>
</template>
<template v-slot="props">
<b-tooltip label="Estimated number of global citations" dashed position="is-left" type="is-dark">
<a :href="citationsLink(props.row)" target="_blank" v-if="citationsLink(props.row)">
{{ props.row.citationsCount }}
</a>
<template v-else>
{{ props.row.citationsCount }}
</template>
</b-tooltip>
</template>
</b-table-column>
<b-table-column field="outDegree" label="OutDeg" meta="Out-Degree: Number of Input Articles cited by this"
sortable :custom-sort="sortOutDegreeWrapper">
<template v-slot:header="{ column }">
<b-tooltip :label="column.meta" dashed position="is-left" type="is-dark">
{{ column.label }}
</b-tooltip>
</template>
<template v-slot="props">
<b-tooltip label="Out-Degree: Number of Input Articles cited by this" dashed position="is-left" type="is-dark">
{{ outDegree(props.row.id) }}
</b-tooltip>
</template>
</b-table-column>
<b-table-column field="inDegree" label="InDeg" meta="In-Degree: Number of Input Articles citing this"
sortable :custom-sort="sortInDegreeWrapper">
<template v-slot:header="{ column }">
<b-tooltip :label="column.meta" dashed position="is-left" type="is-dark">
{{ column.label }}
</b-tooltip>
</template>
<template v-slot="props">
<b-tooltip label="In-Degree: Number of Input Articles citing this" dashed position="is-left" type="is-dark">
{{ inDegree(props.row.id) }}
</b-tooltip>
</template>
</b-table-column>
</b-table>
</b-tab-item>
<b-tab-item value="topCitations" :disabled="currentGraph.outgoingSuggestions === undefined" v-if="currentGraph.outgoingSuggestions === undefined || currentGraph.outgoingSuggestions.length">
<template slot="header">
<h2 class="title is-4">{{ currentGraph.allCitations ? 'All' : 'Top' }} Citations
(<template v-if="currentGraph.outgoingSuggestions?.length">{{ currentGraph.outgoingSuggestions?.length }}</template>
<b-progress v-else :value="(currentGraph.incomingSuggestions === undefined) ? undefined : (isLoadingTotal > 1) ? isLoadingIndex/isLoadingTotal*100 : undefined" size="is-medium" show-value format="percent" :precision="0" style="width: 50px; display: inline-block"></b-progress>)
</template>
<div class="content" v-if="currentGraph.outgoingSuggestions?.length">
<p>
<a @click="fullscreenTable = !fullscreenTable; if (fullscreenTable) resetBothNetworks(); else initCurrentNetwork();" title="Toggle table fullscreen">{{ (fullscreenTable) ? 'show networks' : 'fullscreen table' }}</a> /
download<template v-if="filterString"> filtered</template> citations: <b-tooltip dashed position="is-bottom" type="is-dark" label="Open in spreadsheet editor (e.g. Microsoft Excel)"><a @click="downloadCSVData(outgoingSuggestionsFiltered)">CSV</a></b-tooltip>, <b-tooltip dashed mulitlined position="is-bottom" type="is-dark" label="Open in reference manager (e.g. Zotero)"><a @click="downloadRISData(outgoingSuggestionsFiltered)">RIS</a></b-tooltip> /
<!-- Make sure network is fully loaded (otherwise incomingSuggestions / outgoingSuggestions tabs would show eternal spinning wheels) -->
<template v-if="currentGraph.incomingSuggestions && currentGraph.outgoingSuggestions">
download full network:
<b-tooltip dashed multilined position="is-bottom" type="is-dark"
label="Can be reloaded through the 'File' button at the top right!">
<a @click="downloadJSON">JSON</a>
</b-tooltip>
</template>
</p>
<p>
Citations are citing the Input Articles. They are sorted by out-degree, with the <a @click="indexFAQ = 'top-citations'; showFAQ = true;" href="#top-citations">Top Citations</a> listed at the top. They are derived through forward citation searching (forward in time). They tend to be newer than most Input Articles. {{ (currentGraph.allCitations) ? 'All Citations are not de-duplicated and may also contain Input Articles and References.' : 'Top Citations are de-duplicated against Input Articles and References.'}}
</p>
</div>
<b-field>
<b-select v-model="filterColumn">
<option value="titleAbstract">Title, Abstract, ID</option>
<option value="authors">Authors</option>
<option value="year">Year</option>
<option value="journal">Journal</option>
<option value="citesInputArticleId">Citing Input Article ID</option>
</b-select>
<b-input v-model="filterString" icon="magnify" placeholder="Filter articles…" expanded
:icon-right="filterString ? 'close' : undefined"
icon-right-clickable
@icon-right-click="filterString=''"></b-input>
<span class="button is-static" style="border-radius: 0">{{ outgoingSuggestionsFiltered.length + " / " + currentGraph.outgoingSuggestions?.length }}</span>
<b-select v-model="articlesPerPage">
<option value="10">10 per page</option>
<option value="20">20 per page</option>
<option value="50">50 per page</option>
<option value="100">100 per page</option>
</b-select>
</b-field>
<b-table ref="topCitationsTable" :data="outgoingSuggestionsFiltered" :selected.sync="selectedOutgoingSuggestionsArticle" :current-page.sync="topCitationsTablePage"
default-sort="outDegree" default-sort-direction="desc"
@keyup.native.arrow-left="toggleArticle"
@keyup.native.arrow-right="toggleArticle"
@keydown.native.arrow-up.capture="tableArrowUpChangePage"
@keydown.native.arrow-down.capture="tableArrowDownChangePage"
detailed hoverable striped narrowed focusable
:paginated="outgoingSuggestionsFiltered.length > articlesPerPage" :per-page="articlesPerPage" pagination-position="both">
<template slot="detail" slot-scope="props">
<p class="content">
<b-button v-if="(props.row.referencesCount || props.row.references?.length) && !props.row.isSource"
@click.stop="clickOpenReferences(props.row)"
:disabled="isLoading">
Add network for references
</b-button>
<b-button v-if="outDegree(props.row.id)"
@click="showArticlesTab='inputArticles'; filterColumn='citedById'; filterString=props.row.id">
Filter Input Articles cited by this ({{ outDegree(props.row.id) }})
</b-button>
<b-button v-if="inDegree(props.row.id)"
@click="showArticlesTab='inputArticles'; filterColumn='citingId'; filterString=props.row.id">
Filter Input Articles citing this ({{ inDegree(props.row.id) }})
</b-button>
</p>
<p class="content" v-if="props.row.authors.length">
<b>Authors ({{ props.row.authors.length }}):</b>
<template v-for="(author, index) in props.row.authors">
<template v-if="index !== 0">; </template>
<b-tooltip
multilined
type="is-light"
:triggers="['click']"
:auto-close="['outside', 'escape']">
<template v-slot:content>
<template v-if="author.affil">{{ author.affil }}<br></template>
<a :href="'https://orcid.org/' + author.orcid" v-if="author.orcid" target="_blank">ORCID</a>
<a :href="author.url" v-if="author.url" target="_blank">Homepage</a>
<a :href="'https://openalex.org/' + author.id" v-if="author.id && currentGraph.API === 'OpenAlex'" target="_blank">OpenAlex</a>
<a :href="'https://semanticscholar.org/author/' + author.id" v-if="author.id && currentGraph.API === 'Semantic Scholar'" target="_blank">Semantic Scholar</a>
<a :href="'https://scholar.google.com/scholar?q=' + authorString([author])" target="_blank">Google Scholar</a>
</template>
<a>{{ authorString([author]) }}</a>
</b-tooltip>
</template>
</p>
<p v-if="props.row.tldr"
v-html="'<b><a href="https://www.semanticscholar.org/faq#tldr" target="_blank" title="TLDR is an AI-generated summarization provided by Semantic Scholar.">TLDR: </a></b>' + formatTags(props.row.tldr)"
class="content"></p>
<template v-if="props.row.abstract">
<h4 class="title is-6">Abstract</h4>
<p v-html="formatTags(props.row.abstract)" class="content"></p>
</template>
</template>
<b-table-column label="Title" v-slot="props">
<!-- id is for scrolling to row when network node is clicked -->
<span :id="props.row.id" :class="{ retracted: props.row.isRetracted }">
{{ (props.row.id === currentGraph.source?.id) ? 'Source: ' : (inputArticlesIds.includes(props.row.id) ? 'Input Article: ' : (incomingSuggestionsIds.includes(props.row.id) ? 'Reference: ' : '')) }}
<a v-if="articleLink(props.row)" :href="articleLink(props.row)" target="_blank" v-html="formatTags(props.row.title) || props.row.doi || props.row.id"></a>
<span v-else v-html="formatTags(props.row.title) || props.row.doi || props.row.id"></span>
</span>
</b-table-column>
<b-table-column field="authors" label="Author" v-slot="props">
<b-tooltip dashed multilined :label="authorString(props.row.authors)" position="is-left" type="is-dark">
{{ props.row.authors[0]?.LN }}
</b-tooltip>
</b-table-column>
<b-table-column field="year" label="Year" meta="Hover year to see journal" sortable>
<template v-slot:header="{ column }">
<b-tooltip :label="column.meta" dashed position="is-left" type="is-dark">
{{ column.label }}
</b-tooltip>
</template>
<template v-slot="props">
<b-tooltip dashed :label="props.row.journal" position="is-left" type="is-dark">
{{ props.row.year }}
</b-tooltip>
</template>
</b-table-column>
<b-table-column label="Ref" meta="References in paper"
sortable :custom-sort="sortReferencesWrapper">
<template v-slot:header="{ column }">
<b-tooltip :label="column.meta" dashed position="is-left" type="is-dark">
{{ column.label }}
</b-tooltip>
</template>
<template v-slot="props">
<a :href="referencesLink(props.row)" target="_blank" v-if="referencesLink(props.row)">
{{ props.row.referencesCount || props.row.references?.length }}
</a>
<template v-else>
{{ props.row.referencesCount || props.row.references?.length }}
</template>
</template>
</b-table-column>
<b-table-column field="citationsCount" label="Cit" meta="Estimated global incoming citations (how many papers cite this one)" sortable>
<template v-slot:header="{ column }">
<b-tooltip :label="column.meta" dashed position="is-left" type="is-dark">
{{ column.label }}
</b-tooltip>
</template>
<template v-slot="props">
<b-tooltip label="Estimated number of global citations" dashed position="is-left" type="is-dark">
<a :href="citationsLink(props.row)" target="_blank" v-if="citationsLink(props.row)">
{{ props.row.citationsCount }}
</a>
<template v-else>
{{ props.row.citationsCount }}
</template>
</b-tooltip>
</template>
</b-table-column>
<b-table-column field="outDegree" label="OutDeg" meta="Out-Degree: Number of Input Articles cited by this"
sortable :custom-sort="sortOutDegreeWrapper">
<template v-slot:header="{ column }">
<b-tooltip :label="column.meta" dashed position="is-left" type="is-dark">
{{ column.label }}
</b-tooltip>
</template>
<template v-slot="props">
<b-tooltip label="Out-Degree: Number of Input Articles cited by this" dashed position="is-left" type="is-dark">
{{ outDegree(props.row.id) }}
</b-tooltip>
</template>
</b-table-column>
<b-table-column field="inDegree" label="InDeg" meta="In-Degree: Number of Input Articles citing this"
sortable :custom-sort="sortInDegreeWrapper">
<template v-slot:header="{ column }">
<b-tooltip :label="column.meta" dashed position="is-left" type="is-dark">
{{ column.label }}
</b-tooltip>
</template>
<template v-slot="props">
<b-tooltip label="In-Degree: Number of Input Articles citing this" dashed position="is-left" type="is-dark">
{{ inDegree(props.row.id) }}
</b-tooltip>
</template>
</b-table-column>
</b-table>
</b-tab-item>
</b-tabs>
<b-tabs v-model="showAuthorNetwork" class="column" size="is-small" :animated="false" :style="'display: ' + ((fullscreenTable) ? 'none' : 'block')">
<b-tab-item :loading="true">
<template slot="header"><h2 class="title is-4">Citation network</h2></template>
<b-loading :is-full-page="false" :active="citationNetworkIsLoading"></b-loading>
<div id="citationNetwork" style="height: 100%; cursor: pointer;" :loading="true"></div>
<span style="position:absolute; top: 0px; left: 10px;">
<a @click="fullscreenNetwork = !fullscreenNetwork; setTimeout(function () { citationNetwork.fit() }, 1)" title="Toggle network fullscreen">{{ (fullscreenNetwork) ? 'show tables' : 'fullscreen network' }}</a> /
<a @click="showCitationNetworkSettings = true">network settings</a> /
<a @click="$set(currentGraph, 'citationNetworkTurned', !currentGraph.citationNetworkTurned); changeCurrentNetworkSettings()" title="Rotate network 90°">{{ (currentGraph.citationNetworkTurned) ? '↺' : '↻'}}</a>
</span>
<span style="position:absolute; top: 0px; right: 0px"><a @click="indexFAQ = 'citation-network'; showFAQ = true;" href="#citation-network">how to read this network</a></span>
<span style="position:absolute; bottom: 0px; left: 10px;">{{ (currentGraph.citationNetworkTurned) ? '←' : '↓' }} older articles</span>
<span style="position:absolute; bottom: 0px; right: 0px">newer articles {{ (currentGraph.citationNetworkTurned) ? '→' : '↑' }}</span>
</b-tab-item>
<b-tab-item>
<template slot="header"><h2 class="title is-4">Co-authorship network</h2></template>
<b-loading :is-full-page="false" :active="authorNetworkIsLoading"></b-loading>
<div id="authorNetwork" style="height: 100%; cursor: pointer;"></div>
<span style="position:absolute; top: 0px; left: 10px"><a @click="fullscreenNetwork = !fullscreenNetwork; setTimeout(function () { authorNetwork.fit() }, 1)" title="Toggle network fullscreen">{{ (fullscreenNetwork) ? 'show tables' : 'fullscreen network' }}</a> / <a @click="showAuthorNetworkSettings = true">network settings</a></span>
<span style="position:absolute; top: 0px; right: 0px"><a @click="indexFAQ = 'author-network'; showFAQ = true;" href="#author-network">how to read this network</a></span>
<span style="position:absolute; bottom: 0px; left: 10px">
(only authors with a minimum of
<select v-model="authorNetworkMinPublications" @change="changeCurrentNetworkSettings()">
<template v-for="val in [...Array(101).keys()].splice(1)">
<option :value="val">{{ val }}</option>
</template>
</select>
Input Articles are shown)
</span>
</b-tab-item>
</b-tabs>
</div>
<section class="hero is-fullheight" v-show="currentTabIndex === undefined">
<div class="hero-body">
<div class="container has-text-centered">
<b-loading :active.sync="isLoading"></b-loading>
<h2 class="title">
Click <b-button @click="clickButtonAdd" rounded type="is-dark" title="Add network based on references from a single source DOI" :disabled="isLoading" style="width: 45px"><span style="font-size: 1.8em; line-height: 0.9 ">+</span></b-button> to enter source DOI<br>or scan a plain text file for DOIs instead <b-upload v-model="file" :disabled="isLoading"><a class="button is-dark is-rounded" title="Scan plain text file for DOIs" :disabled="isLoading" style="width: 45px"><span style="font-size: 1.2em; font-weight: normal">File</span></a></b-upload>!
</h2>
(<a @click="loadGraphsFromJSON('examples.json')">Load examples</a> or see <a @click="showFAQ=true">Frequently asked questions</a>)
</div>
</div>
</section>
<b-modal :active.sync="showCitationNetworkSettings" :render-on-mounted="true" :destroy-on-hide="false" :width="750" id="citationNetworkSettingsModal">
<div class="card">
<header class="modal-card-head">
<content>
<h3 class="modal-card-title">Citation network settings</h3>
</content>
</header>
<div class="card-content">
<b-field grouped>
<b-field label="Node color" label-position="on-border">
<b-select v-model="citationNetworkNodeColor" @input="changeCurrentNetworkSettings()">
<option value="year">Year</option>
<option value="journal">Journal</option>
</b-select>
</b-field>
<b-field label="Node size" label-position="on-border">
<b-select v-model="citationNetworkNodeSize" @input="changeCurrentNetworkSettings()">
<option value="both">Sum of In- & Out-Degree</option>
<option value="in">In-Degree only</option>
<option value="out">Out-Degree only</option>
</b-select>
</b-field>
<b-field label="Show source article node" label-position="on-border">
<b-select v-model="citationNetworkShowSource" @input="changeCurrentNetworkSettings()" style="width: 150px">
<option :value="false">No</option>
<option :value="true">Yes</option>
</b-select>
</b-field>
</b-field>
<b-field grouped>
<b-field label="Minimum degree references" label-position="on-border">
<b-input v-model.lazy="minDegreeIncomingSuggestions" type="number" :min="1" :step="1"
@blur="changeCurrentNetworkSettings()" required style="width: 150px">
</b-field>
<b-field label="Maximum references" label-position="on-border">
<b-input v-model.lazy="maxIncomingSuggestions" type="number" :min="0" :max="currentGraph.incomingSuggestions?.length" :step="1"
@blur="changeCurrentNetworkSettings()" required style="width: 150px">
</b-field>
</b-field>
<b-field grouped>
<b-field label="Minimum degree citations" label-position="on-border">
<b-input v-model.lazy="minDegreeOutgoingSuggestions" type="number" :min="1" :step="1"
@blur="changeCurrentNetworkSettings()" required style="width: 150px">
</b-field>
<b-field label="Maximum citations" label-position="on-border">
<b-input v-model.lazy="maxOutgoingSuggestions" type="number" :min="0" :max="currentGraph.outgoingSuggestions?.length" :step="1"
@blur="changeCurrentNetworkSettings()" required style="width: 150px">
</b-field>
</b-field>
<p class="content">
Warning: The settings below are only temporary, will not be saved and will be reset when re-initialising the network (e.g. changing the settings above, loading another network, changing the network tab, ...)! They are provided by the <a href="https://visjs.github.io/vis-network/docs/network/" target="_blank">vis.js network library</a> used.
</p>
<div id="citationNetworkConfigure"></div>
</div>
</div>
</b-modal>
<b-modal :active.sync="showAuthorNetworkSettings" :render-on-mounted="true" :destroy-on-hide="false" :width="750" id="authorNetworkSettingsModal">
<div class="card">
<header class="modal-card-head">
<content>
<h3 class="modal-card-title">Co-authorship network settings</h3>
</content>
</header>
<div class="card-content">
<b-field grouped>
<b-field label="Node color" label-position="on-border">
<b-select v-model="authorNetworkNodeColor" @input="changeCurrentNetworkSettings()">
<option value="firstArticle">First article</option>
<option value="lastArticle">Last article</option>
</b-select>
</b-field>
<b-field label="Show first names" label-position="on-border">
<b-select v-model="authorNetworkFirstNames" @input="changeCurrentNetworkSettings()" style="width: 150px">
<option :value="false">No</option>
<option :value="true">Yes</option>
</b-select>
</b-field>
</b-field>
<p class="content">
Warning: The settings below are only temporary, will not be saved and will be reset when loading another network or changing the network tab! They are provided by the <a href="https://visjs.github.io/vis-network/docs/network/" target="_blank">vis.js network library</a> used.
</p>
<div id="authorNetworkConfigure"></div>
</div>
</div>
</b-modal>
<b-modal :active.sync="editListOfIds" :can-cancel="['x', 'outside']" has-modal-card @cancel="newSourceId=undefined; listOfIds=undefined; listName=undefined; bookmarkletURL=undefined">
<div class="modal-card">
<header class="modal-card-head">
<content>
<h3 class="modal-card-title">Import custom list of IDs</h3>
<p>One ID per row. Use OpenAlex / Semantic Scholar for PMIDs. Empty rows are placeholders in order to help preserve original numbering.</p>
</content>
</header>
<section style="position: relative; height:300px">
<textarea id="rownumber" disabled style="overflow-y: scroll; height: 100%; width: 80px; text-align: right; position: absolute; padding-right: 35px; color: grey; resize: none; background-color: white; border: 1px darkgrey" onscroll="this.scrollTop = document.getElementById('DOIs').scrollTop" v-model="(listOfIds || []).map((x,i)=>i+1).join('\n')"></textarea>
<textarea id="DOIs" style="height: 100%; width: calc(100% - 50px); position: absolute; left: 50px; padding: 0px 5px; resize: none" spellcheck="false" onscroll="document.getElementById('rownumber').scrollTop = this.scrollTop" v-model="editedListOfIds"></textarea>
</section>
<footer class="modal-card-foot">
<b-button @click="showOptionsAPI = !showOptionsAPI" style="width: 100%">API: {{ API }} ({{ abbreviateAPI(API) }})</b-button>
<b-button @click="clickButtonAdd" style="width: 100%">{{ newSourceId ? 'Source: ' + newSourceId.substr(0, 20) : 'No source' }}</b-button>
<b-button class="is-primary" @click="importList" :disabled="!(listOfIds || []).filter(Boolean).length" style="width: 100%">{{ newSourceId ? 'Import': 'Import with list name: '}}</b-button>
<b-input v-if="!newSourceId" v-model.lazy="listName" maxlength="100" :has-counter="false" style="width: 100%"></b-input>
</footer>
</div>
</b-modal>
<b-modal :active.sync="showOptionsAPI" :width="750">
<div class="card">
<header class="modal-card-head">
<content>
<h3 class="modal-card-title">API options</h3>
</content>
</header>
<div class="card-content">
<p class="content">
References can be retrieved through all <a @click="indexFAQ = 'switch-api'; showFAQ = true;" href="#switch-api">APIs</a>. Citations can be retrieved through OpenAlex (OA), Semantic Scholar (S2) and OpenCitations (OC). <a @click="indexFAQ = 'top-references'; showFAQ = true;" href="#top-references">Top References</a> are the most cited references by the Input Articles. <a @click="indexFAQ = 'top-citations'; showFAQ = true;" href="#top-citations">Top Citations</a> are citing the most Input Articles. Retrieving All References / Citations works best with OpenAlex (OA) & Semantic Scholar (S2).
</p>
<b-field grouped>
<b-field label="Select API">
<b-select v-model="API" @input="saveState(false)">
<option value="OpenAlex">OpenAlex (OA)</option>
<option value="Semantic Scholar">Semantic Scholar (S2)</option>
<option value="OpenCitations">OpenCitations (OC)</option>
<option value="Crossref">Crossref (CR)</option>
</b-select>
</b-field>
<b-field label="Retrieve references">
<b-select v-model="retrieveReferences" @input="saveState(false)">
<!--<option :value="0">None</option>-->
<option :value="10">Top 10</option>
<option :value="20">Top 20</option>
<option :value="50">Top 50</option>
<option :value="Infinity">All</option>
</b-select>
</b-field>
<b-field label="Retrieve citations" v-if="API !== 'Crossref'">
<b-select v-model="retrieveCitations" @input="saveState(false)">
<option :value="0">None</option>
<option :value="10">Top 10</option>
<option :value="20">Top 20</option>
<option :value="50">Top 50</option>
<option :value="Infinity">All</option>
</b-select>
</b-field>
</b-field>
<b-field label="Semantic Scholar (S2) API Key:">
<b-input v-model="semanticScholarAPIKey"></b-input>
</b-field>
</div>
</div>
</b-modal>
<b-modal :active.sync="showFAQ" :width="840" scroll="keep">
<div class="card">
<div class="card-header-title">
<content>
<h3 class="title is-3">Instructions</h3>
<a @click="indexFAQ = ['about', 'how-to-use', 'bookmarklet', 'top-references', 'top-citations', 'citation-network', 'author-network', 'switch-api', 'autosave', 'supported-browsers', 'slow-queries', 'completeness', 'original-order', 'bibliometrics', 'google-scholar', 'idea', 'open-source', 'privacy', 'technicalities', 'contact']">open all</a> /
<a @click="indexFAQ = []">collapse all</a>