Research Discovery
OpenAlex
Open catalog of scholarly works, authors and institutions.
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LITERATURE, REPOSITORIES & METADATA
Research Discovery
Find scholarly records across independent search portals. Discoverability, peer review, open access and full-text availability are separate questions.
Independent source gateways
Research Discovery
CORE
Search for scholarly outputs and open-access research.
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OpenAIRE
Open research discovery and connected research products.
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Semantic Scholar
Scholarly search and citation discovery.
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Google Scholar
Search for papers, books, citations and academic sources.
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PubMed
National Library of Medicine biomedical citation database.
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Europe PMC
Search life-sciences publications, preprints and articles.
Visit Europe PMCResearch Discovery
ERIC
U.S. education research index and full-text resources where available.
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arXiv
Preprints in maths, physics, computer science and other fields.
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bioRxiv
Biology preprint server.
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medRxiv
Health sciences preprint server; findings are preliminary.
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SSRN
Working papers and early research across disciplines.
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SciELO
Scholarly open-access publishing network.
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BASE
Bielefeld Academic Search Engine for scholarly resources.
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Zenodo
Open research repository for publications, software and datasets.
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Crossref Search
Look up published work metadata and DOI records.
Visit Crossref SearchUnderstand the record
Peer reviewed
A journal or publisher process; check the publication record and journal policy.
Preprint
A manuscript made public before journal peer review; it can change and may not be validated.
Open access
Free-to-read access; reuse still depends on copyright and licence.
Indexed
Included in a discovery service under its own selection criteria; not an endorsement.
DOI
A persistent identifier that helps locate an object; it does not certify quality.
Full text
The complete work; search access or an abstract does not guarantee it is free.
IEU Academic Journals
IEU’s journal information is a separate product from this independent source guide.
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