Science Citation Index ExpandedÂ® A multidisciplinary index covering the journal literature of the sciences. Best database for finding what papers have cited other papers. Cited references can be traced forward in time. Some of the disciplines covered include agriculture, astronomy, biochemistry, biology, chemistry, computer science, materials science, mathematics, medicine, neuroscience, physics, plant sciences, and
Social Sciences Citation IndexÂ® Covers anthropology, economics, history, library & info science, law, linguistics, philosophy, political science, psychology, public health, sociology, urban studies, and women's studies.