共 5 条
[2]
Bontems J.E, 1941, B SCI PHARM, V49, P186
[3]
PRELOG V, 1930, COLLECT CZECH CHEM C, V2, P414
[4]
1945, NATURE, V155, P601
[5]
1932, KLEINS HDB PFLANZENA, V3, P1103