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The Arts & Humanities Citation Index is a multidisciplinary index to the journal literature of the arts and humanities. It indexes the world's leading arts and humanities journals, as well as selected articles from social science and science journals and includes articles, bibliographies, editorials, letters, reviews, and more.

Coverage is from 1981 to the present.

The Science Citation Index Expanded provides access to current and retrospective bibliographic information, author abstracts, and cited references found in approximately 5,900 of the world's leading scholarly science and technical journals covering more than 150 disciplines.

Coverage is from 1981 - present.


The Social Sciences Citation Index is a multidisciplinary index to the journal literature of the social sciences. It indexes more than 3,300 journals across social sciences disciplines, including psychology, business, economics, social work, and other social sciences subject areas.

Coverage is from 1981 - present.