共 50 条
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- [37] COMPARISON OF RETRIEVAL EFFECTIVENESS OF CHEMICAL ABSTRACTS CONDENSATES AND CHEMICAL ABSTRACTS SUBJECT INDEX ALERT ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1976, 172 (SEP3): : 21 - 21
- [38] 60TH ANNIVERSARY OF CHEMICAL ABSTRACTS AND CONTEMPORARY STATE OF CHEMICAL ABSTRACTS SERVICE CHEMICKE LISTY, 1968, 62 (01): : 23 - &
- [39] ABSTRACTS - INDUSTRIAL ORGANIC CHEMISTRY JOURNAL OF APPLIED CHEMISTRY, 1965, 15 (08): : 149 - +
- [40] ABSTRACTS - INDUSTRIAL ORGANIC CHEMISTRY JOURNAL OF APPLIED CHEMISTRY, 1965, 15 (03): : I258 - +