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Publication coverage: 1907 - present.SciFinder® is the world's premier chemical information database. Produced by the Chemical Abstracts Service (CAS), a division of the American Chemical Society, SciFinder® provides access to chemical structures, properties, spectra, reactions, and literature sourced from Chemical Abstracts (CAPlus) and MEDLINE. Regulated chemical information and chemical supplier catalogues are also searchable. SciFinder® indexes 50,000 journal titles (historical and current) and patents from 63 patent authorities. As of November 2017, it contained more than 45 million literature references.
Publication coverage: Varies by publicationThe SEG Digital Library provides a single access point and interface consistency for the Society of Exploration Geophysicists' two journals, its meeting abstracts, and its best-selling encyclopedic dictionary. Coverage includes a complete archive all technical articles published in GEOPHYSICS, THE LEADING EDGE, and the SEG Technical Program Expanded Abstracts.