BIOSIS Previews is a comprehensive index of life sciences and biomedical research worldwide including: journals, meetings, patents, and books. Biological Abstracts and Biological Abstracts/RRM (reports, reviews & meetings) comprise BIOSIS Previews.
IEEE Xplore is the IEEE's electronic library. It holds all IEEE and IEE (Britain's Institution of Electrical Engineers) journals and conference proceedings published since 1988 as well as all current IEEE standards.
Scopus covers articles from over 14,000 peer-reviewed titles. Subject coverage includes: Chemistry, Physics, Mathematics and Engineering , Environmental Sciences and General Sciences.
The Web of Science provides seamless access to current and retrospective multidisciplinary information from approximately 8,700 of the most prestigious, high impact research journals in the world.