PubMed Central® (PMC) is a free full-text archive of biomedical and life sciences journal literature at the U.S. National Institutes of Health's National Library of Medicine (NIH/NLM). In keeping with NLM’s legislative mandate to collect and preserve the biomedical literature, PMC serves as a digital counterpart to NLM’s extensive print journal collection. PMC contains more than 5 million full-text records, spanning several centuries of biomedical and life science research (late 1700s to present). Content is added to the archive through:
- Journal and Publisher Program Deposit
- Author Manuscript Deposit
- Digitization Projects
For more information, visit ncbi.nlm.nih.gov/pmc/about/intro
Research Papers in Economics is a collaborative effort to enhance the discovery of research in economics, business, management, and statistics. It contains working papers, journal articles, books, book chapters, and software components.
For more information, visit repec.org
SciFinder® and STN
SciFinder and STN provide easy access to chemistry and related information. These are solutions offered by the Chemical Abstract Association, a part of the American Chemical Society (ACS).
For more information, visit cas.org/products/scifinder
Scopus is an abstract and citation database offered by Elsevier. Scopus indexes content from 24,600 active titles and 5,000 publishers which is rigorously vetted and selected by an independent review board, and uses a rich underlying metadata architecture to connect people, published ideas and institutions. Scopus offers information on author affiliations, number of publications, citations, references etc. Additionally, Scopus offers CiteScore providing citation data for all active titles covered in Scopus including journals, books, conference proceedings etc. Scopus’ CiteScore is an alternative metric to Journal Impact Factor offered by Journal Citation Report/Web of Science.
Web of Science
Web of Science is a comprehensive, multi-disciplinary citation database with over 1 billion cited reference connections from 18,000 high impact peer reviewed journals, 180,000 conference proceedings, and over 80,000 books from around the world.
Web of Science Core Collection includes:
- Science Citation Index Expanded
- Social Sciences Citation Index
- Arts & Humanities Citation Index
- Emerging Sources Citation Index
- Book Citation Index
- Conference Proceedings Citation Index
Zentrablatt MATH (zbMATH)
zbMATH is the world’s most comprehensive and longest-running abstracting and reviewing service in pure and applied mathematics. The zbMATH database contains about 4 million bibliographic entries with reviews or abstracts currently drawn from about 3,000 journals and serials, and 180,000 books. About 7,000 active expert reviewers from all over the world contribute reviews to zbMATH.
For more information, visit zbmath.org