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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)