共 9 条
[1]
CROSSLEY ML, 1946, Patent No. 2394963
[3]
ELLINGSON RC, COMMUNICATION
[5]
LIEBKNECHT O, 1920, Patent No. 1359080
[6]
Nelson O., 1942, IND ENG CHEM ANAL ED, V14, P153
[7]
NORRIS R, 1940, IND ENG CHEM, V32, P173
[8]
VAUGHAN TH, 1934, J AM CHEM SOC, V56, P2122