共 26 条
[21]
STRASSMAN R, 1953, J AM CHEM SOC, V75, P5135
[22]
WAAL HLD, 1948, J S AFRICAN CHEM I, V1, P23
[23]
WAAL HLD, 1945, ONDERST J VET SCI AN, V17, P181
[24]
WAAL HLD, 1951, J S AFRICAN CHEM I, V4, P115
[25]
Warren F. L., 1955, PROGR CHEM NAT PROD, V12, P198
[26]
WATT D, 1947, FED PROC, V6, P301