共 11 条
[1]
ABRAHAM EP, 1977, J ANTIB S, V30
[2]
Demarco P. V., 1972, CEPHALOSPORINS PENIC, P312
[6]
EDWARDS EI, 1977, Patent No. 1470210
[7]
KNOBLOCH PW, 1961, J POLYM SCI, V54, P651
[8]
PERELLA DJ, 1975, Patent No. 3882100
[9]
RICHARDS JH, 1956, CHEM IND-LONDON, P1456