Provides indexing for over 12,000 academic journals, proceedings of international conferences, symposia, seminars, colloquia, workshops, and conventions, from three databases:
Science Citation Index, 1899-
Social Sciences Citation Index, 1898-
Arts & Humanities Citation Index, 1975-
Web of Science also offers a true cited reference index, which allow you to trace particular research forward in time or backward in time to see how works grow and develop in a focused area of research.