Science Citation Index Expanded covers more than 8,500 notable journals encompassing 150 disciplines from the year 1900 to the present day.
Social Sciences Citation Index covers more than 3,000 journals in social science disciplines from the year 1900 to the present day.
Arts & Humanities Citation Index covers more than 1,700 arts and humanities journals starting from 1975 and 250 major scientific and social sciences journals.
Emerging Sources Citation Index covers over 5,000 journals in the sciences, social science, and humanities. Book Citation Index covers more than 60,000 editorially selected books starting from 2005. Conference Proceedings Citation Index covers more than 160,000 conference titles in the Sciences starting from 1990 to the present day.
30 million citations for biomedical literature from MEDLINE, life science journals, and online books from 1946 to present (based on MEDLINE), with selected coverage back to 1809. From the United States National Library of Medicine at the National Institutes of Health.
Entries include links to MeSH terms and other NCBI resources, including molecular structure, DNA sequence, and protein sequence databases, as well as to PMC and other OA sources where available. This custom link will also include CaltechConnect functionality to access full text or request via DocuServe.
Provides fulltext access to IEEE transactions, journals, magazines since 1988 (with some content back to 1952), conference proceedings since 1988 (with some content back to 1952), IEEE Standards and IEE journals, letters, magazines, and conference proceedings since 1988. See their Self-paced Tutorials