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Smith, JK; Hounshell, DA (1985). Wallace H. Carothers and Fundamental Research at Du Pont. Science. Vol. 229, no. 4712 (published 1985 Aug 2). pp. 436–442. doi:10.1126/science.229.4712.436. PMID17738664. {{cite news}}: Проверьте значение даты: |publication-date= (справка)