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- [26] NUMBERS OF POLYMER DEGREES GRANTED IN THE UNITED-STATES ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1986, 192 : 160 - PMSE
- [28] NUMBERS OF POLYMER DEGREES GRANTED IN THE UNITED-STATES ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1991, 202 : 128 - PMSE