More than a quarter of the world's scientific, medical and technical information is available in ScienceDirect. There are over 2,000 peer-reviewed journals.
Web of Science connects publications and researchers through citations and controlled indexing in curated databases spanning every discipline. Use cited reference search to track prior research and monitor current developments in over 100 years’ worth of content that is fully indexed, including 2.6 million records and backfiles dating back to 1898.
Provides full text for nearly 4,000 scholarly publications, including full text for more than 3,100 peer-reviewed journals in a wide variety of academic study and offers information dating as far back as 1975.