Web of Science

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Coverage: 
Science Citation Index Expanded (1900-present), Social Sciences Citation Index (1900-present), Arts & Humanities Citation Index (1975-present), Conference Proceedings Citation Index (1990-present), Book Citation Index (2005-present)
Emerging Sources Citation Index (2015-present) Current Chemical Reactions (1985-present) (Includes Institut National de la Propriete Industrielle structure data back to 1840) Index Chemicus (1993-present)
Web of Science Core Collection searches the world’s leading scholarly journals, books, and proceedings in the sciences, social sciences, and arts and humanities and navigate the full citation network. It includes: Science Citation Index Expanded (1900-present), Social Sciences Citation Index (1900-present), Arts & Humanities Citation Index (1975-present), Conference Proceedings Citation Index (1990-present), Book Citation Index (2005-present), Current Chemical Reactions (1985-present), Index Chemicus (1993-present), BIOSIS Citation Index: 1926-present, Current Contents Connect, Data Citation Index (1900-present), Derwent Innovations Index (1963-present), MEDLINE and Zoological Records (1864-present).
Alt_Name: 
Web of Knowledge