Dolfini, Joseph E.; Applegate, Harold E.; Bach, Georges; Basch, Harold; Bernstein, Jack; Schwartz, Joseph; Weisenborn, Frank L. (). „New class of semisynthetic penicillins and cephalosporins derived from D-2-(1,4-cyclohexadienyl)glycine”. Journal of Medicinal Chemistry. 14 (2): 117. doi:10.1021/jm00284a008. PMID5544394.
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Dolfini, Joseph E.; Applegate, Harold E.; Bach, Georges; Basch, Harold; Bernstein, Jack; Schwartz, Joseph; Weisenborn, Frank L. (). „New class of semisynthetic penicillins and cephalosporins derived from D-2-(1,4-cyclohexadienyl)glycine”. Journal of Medicinal Chemistry. 14 (2): 117. doi:10.1021/jm00284a008. PMID5544394.