共 5 条
[2]
BRAUNS FE, 1939, J AM CHEM SOC, V61, P2120
[3]
GLADING, 1940, PAPER TRADE J, V111, P32
[4]
KALB, 1928, BER, V61, P1007
[5]
VANDENAKKER JA, 1943, Patent No. 2312010