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A multidisciplinary database of more than 8,500 fulltext periodicals with pdf content going back as far as 1887. Includes indexing and abstracting for more than 12,500 periodicals.
Offers well-researched information covering all aspects of human impact on the environment. Coverage 1991-present
Offers more than a quarter of the world's scientific, medical and technical information
online. Coverage varies by title. Most fulltext begins 1995.
Entire editorial contents of Scientific American magazine, from January 1993 through to the present. Coverage 1993-present.