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And Others; Zipperer, W. C. – Journal of Chemical Documentation, 1973
Minimum, maximum, and average lengths and frequency counts for the data elements in the Chemical Substance and General Subject segments of the Standard Distribution Format (SDF) files distributed by Chemical Abstracts Service are presented. (5 references) (Authors)
Descriptors: Chemical Nomenclature, Data Processing, Databases, Information Processing
Peer reviewed Peer reviewed
Weil, B.H. – Journal of Chemical Documentation, 1971
The state of the art for document access is briefly reviewed and a reasonably far look into the future is presented in this paper. (40 references) (Author/NH)
Descriptors: Copyrights, Costs, Data Processing, Information Networks