共 6 条
[1]
Hildebrandt G., 1934, US Patent, Patent No. [1 956 950, 1956950]
[3]
KAMLET J, 1939, Patent No. 2151517
[4]
Nagai, 1929, LIEBIGS ANN CHEM, V470, P157
[5]
VANDERBILT, 1937, THESIS PURDUE U