共 4 条
[1]
GREGORY, 1948, J AM CHEM SOC, V70, P999
[2]
GRESHAM, 1948, J AMER CHEM SOC, V70, P1003
[3]
GRESHAM, 1948, J AM CHEM SOC, V70, P1001
[4]
1944, Patent No. 2352641