Citation Databases & Literature Discovery Tools
This sub-cluster groups the databases and tools researchers and research administrators use to search, browse, and visualize the scholarly literature — as distinct from the impact metrics computed from that literature, which are covered in a separate sub-cluster. It follows a long-standing library-science convention of treating citation indexes and discovery layers as one category of infrastructure and the bibliometric indicators derived from them as another. Pages here cover the major citation databases and discovery platforms: subscription-based citation indexes such as Web of Science and Scopus, which have historically served as the authoritative sources for citation counts and journal-level indicators; and more openly available alternatives such as OpenAlex and Semantic Scholar, which combine bibliographic metadata with AI-assisted features like citation-graph visualization, related-work recommendation, and semantic search across abstracts. Each platform differs in coverage (which journals, preprints, and disciplines it indexes), in access model (subscription versus open), and in how it links records to persistent identifiers such as DOIs and ORCID iDs — differences that matter directly to a research administrator deciding which source to cite in a report or use for a literature review. Because these tools sit upstream of citation counts, altmetrics, and other impact indicators, this sub-cluster is deliberately scoped to discovery and search functionality: finding, tracking, and mapping literature, rather than quantifying its influence. Readers looking for citation counts, h-index calculations, or alternative metrics should see the research impact and bibliometric indicators sub-cluster instead.
Guides
SNDL: Algeria’s National Online Documentation System
SNDL is Algeria’s national portal, run by CERIST under MESRS/DGRSDT, giving researchers access to subscribed international databases and e-journals. This guide covers eligibility, registration through your lab director or central library, login and password recovery, and off-campus access.
IASJ (Iraqi Academic Scientific Journals): New Domain, Search, and Access Guide
What IASJ is, why iasj.net was replaced by iasj.rdd.edu.iq, how to confirm you’re on the legitimate current site, how to search Iraqi academic journals, and how manuscript submission works on IASJ-listed journals.
AJOL (African Journals Online): What It Hosts, Fees, and Indexing Explained
AJOL (African Journals Online) is a pan-African, non-profit journal-hosting platform started by INASP in 1998. This guide covers what it hosts, whether it is Scopus-indexed, its fee model, and how to search, access, and submit manuscripts.
VJOL (Vietnam Journals Online): The Guide to Its Three Domains
VJOL (Vietnam Journals Online) hosts Vietnam’s peer-reviewed journals — but its 2026 OJS 3.5 migration split it across three domains. This guide explains which one (vjol.info.vn) is real, which (vjol.vista.gov.vn) is API-only infrastructure, and which (vjol.info) is not VJOL at all, plus access, submission, and how it relates to NAFOSTED.
How to Use Shodhganga to Find a PhD Research Topic and Identify a Research Gap
Shodhganga holds 600,000+ Indian PhD theses. Here’s how to search it systematically — by subject, university and keyword — and read chapter lists and ‘scope for future work’ sections to find a defensible research gap.
Garuda (Garba Rujukan Digital): Indonesia’s National Journal and Article Index, and How It Relates to SINTA
Garuda (Garba Rujukan Digital) is Indonesia’s national index of journal articles and conference proceedings, run by Kemdiktisaintek and linked to SINTA’s researcher/journal rankings and Arjuna’s accreditation process.
KENET: Kenya’s Research and Education Network (NREN) Explained
What KENET (Kenya’s National Research and Education Network) is, how its membership and connectivity services work, how it runs eduroam, and how NRENs generally connect research institutions worldwide.
BanglaJOL (Bangladesh Journals Online): What It Hosts and How Access Works
BanglaJOL is Bangladesh’s national platform for locally published scholarly journals, part of the INASP-founded Journals Online (JOL) family. This guide covers its open-access model, how journals join, its OJS/PKP software base, DOI assignment via Crossref, and why it matters for research indexed poorly by Scopus and Web of Science.
Philippine E-Journals (PEJ): What It Covers and How to Use It
How Philippine E-Journals (PEJ) aggregates Philippine-published scholarship, how subscription vs open access actually works, and how to find Philippine research that Scopus and Web of Science index poorly or not at all.
HEC National Digital Library: How Access Actually Works for Pakistani Researchers
How institutional and off-campus access to Pakistan’s HEC National Digital Library actually works, who is eligible, why publisher coverage varies by licensing cycle, and how it compares to India’s e-ShodhSindhu.
ERIC Database: What It Indexes and How to Search It
ERIC (Education Resources Information Center) is the free, federally funded bibliographic database for education research — what it indexes, EJ vs ED numbers, and how it compares to Education Source, PsycINFO, and Scopus.
What Is ProQuest Dissertations & Theses (PQDT)?
What ProQuest Dissertations & Theses Global (PQDT) covers, how university-mediated deposit works, the author-rights difference between Traditional and Open Access Publishing PLUS, embargo options, ProQuest’s Clarivate ownership, and how to read a dissertation without a subscription.
How to Use WorldCat to Find and Request Materials
A practical guide to using WorldCat as a research tool: locating held items, understanding holdings data, requesting via interlibrary loan, the OCLC number as a persistent record identifier, and the WorldCat Identities-to-Entities transition.
CNKI Explained: What It Is and How to Use a Citation Into It
CNKI (China National Knowledge Infrastructure) is China’s largest academic database of journals, dissertations, conference papers, and newspapers. What it contains, how non-Chinese researchers access it, the CAJ file format, and what to do when you can’t read a CNKI citation.
Shodhgangotri: INFLIBNET’s PhD Synopsis Repository
Shodhgangotri is INFLIBNET’s repository of approved PhD research synopses submitted at registration — the companion collection to Shodhganga, which holds completed theses. This guide covers what a synopsis submission involves, the UGC regulatory context, how universities deposit, how to search it, and why scholars use it to check whether a topic is already registered elsewhere.
Is Shodhganga Deposit Mandatory? The UGC PhD Rule Explained
Shodhganga deposit is mandatory for Indian PhDs under a 2016 UGC regulation. How the deposit process, embargoes, and Shodhgangotri work — and where to go if you just need the repository itself.
SINTA (Science and Technology Index): Indonesia’s National Researcher, Journal, and Institution Ranking System
SINTA is Indonesia’s government-run system ranking researchers, journals (S1-S6 accreditation), and institutions, layered on Scopus and Google Scholar data.
Russian Science Citation Index (RSCI / eLIBRARY.RU): Russia’s National Bibliometric Database
RSCI is Russia’s national citation index, developed since 2005 by eLIBRARY.RU with the Russian Academy of Sciences. This guide covers its governance, ~13 million-publication coverage, its 2016–2022 presence on Web of Science, and how it’s used in Russian research assessment.
TCI-HSS: Taiwan’s Citation Index for Humanities and Social Sciences
TCI-HSS is Taiwan’s National Central Library-run citation database for humanities and social-science journals, dissertations, and books, built on the TSSCI/THCI tiering systems and free to access.
OpenCitations and I4OC: Open Citation Data vs. Web of Science and Scopus
How OpenCitations and the Initiative for Open Citations (I4OC) provide free, CC0-licensed, machine-readable citation data as an open alternative to subscription citation counts from Web of Science and Scopus.
TR Dizin (ULAKBİM): Turkey’s National Academic Citation Index
TR Dizin is Turkey’s national academic citation index, developed and operated by ULAKBİM (TÜBİTAK). This guide covers its evaluation criteria, journal coverage, and role in Turkish academic promotion — and how it differs from TİTCK.
Korea Citation Index (KCI) and KRI: South Korea’s National Researcher and Citation Database
KCI is South Korea’s national citation database and KRI is its linked national researcher registry, both operated by the National Research Foundation of Korea (NRF). This guide explains what each system does, how they connect, who governs them, and what they mean for grant applicants and international collaborators.
PubMed-to-Embase Search Strategy Translation for Systematic Reviews
How to translate a PubMed search strategy into Embase syntax for a PRISMA-compliant systematic review: MeSH-to-Emtree vocabulary mapping, field-code and proximity-operator differences, a step-by-step workflow, common pitfalls, and how to validate the translated strategy.
Can You Get a Scopus Author ID Without a Publication? What To Do Instead
A Scopus Author ID can’t be requested or self-registered before you have a Scopus-indexed publication — Elsevier’s algorithm only generates one from indexed documents. This guide explains why, what Elsevier’s Author Feedback Wizard can and can’t do, and what to use (an ORCID iD) in the meantime.
Bibliometric Analysis: Methodology, Workflow, and How to Conduct One
What bibliometric analysis is, the step-by-step workflow for conducting one, and a landscape overview of techniques from citation counts to co-word analysis.
VOSviewer: Bibliometric Mapping, Co-Citation, and Keyword-Network Analysis
What VOSviewer is, how its interface and workflow work, its core bibliometric-mapping use cases, and how it compares to CiteSpace, Gephi, and Bibliometrix.
How to Merge Duplicate Web of Science Author Records and Researcher Profiles
How to merge duplicate Web of Science Author Records and claimed researcher accounts: the editor-reviewed path for unclaimed records and the OTP-verified self-service path for claimed accounts, sourced from Clarivate’s own documentation.
How to Compile One Complete Publication List Across PubMed, Scopus, Web of Science, and Google Scholar
A practical workflow for pulling and deduplicating publication records across PubMed, Scopus, Web of Science, and Google Scholar into one complete, accurate list for a tenure dossier, biosketch, or institutional report.
What OpenAlex Is Actually Used For: Research Assessment and Discovery Beyond Citation Counts
What OpenAlex is actually used for beyond citation lookups: research assessment and benchmarking, national open-science monitoring, institutional analytics, and literature discovery.
Citation Network Analysis: Co-Citation, Bibliographic Coupling, and Mapping Tools
How citation network analysis maps relationships between papers and authors using co-citation and bibliographic coupling, the tools researchers use to do it, and where it fits in literature review and research assessment.
Citation Indexing: What It Is and How Citation Indexes Work
A foundational explainer on citation indexing: how citation indexes extract, match, and count citations, how Web of Science, Scopus, and Google Scholar differ, and how citation data is used (and misused) in research assessment.
Troubleshooting Missing or Inaccurate Citations on a Google Scholar Profile
A working Google Scholar profile still develops errors after setup: citations that never appear, duplicate entries splitting a citation count, or papers attributed to the wrong author. This guide walks through diagnosing each failure mode and the specific correction tool that fixes it.
How to Increase Citations: Legitimate Visibility Techniques for Researchers
A practical guide to legitimate citation-visibility techniques for researchers: green open access self-archiving, preprint deposit, ORCID and DOI metadata hygiene, discoverable titles and abstracts, and academic network sharing — with a clear line drawn against citation manipulation.
Metadata Search Engines for Scholarly Research: OpenAlex, Dimensions, Google Scholar, CORE, BASE, and Semantic Scholar Compared
What a scholarly metadata search engine is, how it differs from generic web search and SEO metadata tools, and how OpenAlex, Dimensions, Google Scholar, CORE, BASE, and Semantic Scholar compare for research and reporting tasks.
Why You Can’t Create a Scopus Author ID
A Scopus Author ID is algorithmically generated, not self-registered. This guide explains why you can’t create one, how to find yours, and how to merge duplicates or correct affiliation with Elsevier’s Author Feedback Wizard.
Web of Science Researcher Profile: What It Is and How to Claim One
A Web of Science Researcher Profile is a claimed, verified page combining publications, citation metrics, and peer-review record — the modern merger of ResearcherID and Publons.
How to Create and Optimize a Google Scholar Profile for Discoverability
A practical, step-by-step guide to creating a Google Scholar Citations profile and optimizing it for discoverability: verification, name consistency, keyword tagging, alerts, and common mistakes to avoid.
Web of Science Author Search: Finding and Disambiguating an Author’s Records
How to use Web of Science’s Author Search tool to find, refine, and disambiguate an author’s publication records – Author Records, combining/merging results, and how ResearcherID and ORCID fit in.
OpenAlex API: Endpoints, Authentication, and Pagination
A practical reference for the OpenAlex REST API: entity endpoints, API-key authentication and 2026 usage-based pricing, filter/search/select/group_by query parameters, basic vs. cursor pagination, and when to use the bulk snapshot instead of the live API.
How to Search Web of Science Effectively
A practical guide to searching Web of Science: basic vs. advanced search, field tags (TS=, AU=, SO=, and more), Boolean and proximity operators, Cited Reference Search, and author disambiguation via ResearcherID and ORCID.
Litmaps: Citation Mapping and Literature Monitoring Tool
Litmaps is a citation-mapping and literature-monitoring tool built around Seed Articles and an ongoing Monitor alert that notifies researchers of new citing papers over time. This guide covers its features, pricing, and how it differs from Connected Papers and Research Rabbit.
OpenAlex: What It Is and How It Works
A practical guide to OpenAlex: the free, fully open scholarly metadata graph from OurResearch that succeeded Microsoft Academic Graph, its core entities, API/bulk-data model, and why open licensing matters for CRIS integrations.
Is Connected Papers Enough for a Systematic Review?
Connected Papers builds a one-shot visual citation graph from a single origin paper using co-citation and bibliographic coupling. This guide covers its Prior/Derivative Works views, multi-origin graphs, pricing, and exactly how it differs from Research Rabbit.
Research Rabbit: Citation-Mapping Tool Guide
Research Rabbit is a free citation-network visualization tool for literature discovery. This guide covers its Similar/Earlier/Later Work discovery modes, Collections, reference-manager integration, real research-administration use cases, and honest limitations versus subscription databases and systematic-review-grade search.
Semantic Scholar: What It Is and How It Works
What Semantic Scholar is, how its AI-generated TLDRs and influential-citation classification work, the open corpus and API behind it, and how it compares to Google Scholar and subscription databases.
