共 6 条
[1]
KRIMM H, 1952, Patent No. 953069
[2]
1955, Patent No. 1021358
[3]
1902, BER DTSCH CHEM GES, V35, P4293
[4]
1901, BER DTSCH CHEM GES, V34, P2262
[5]
1903, BER DTSCH CHEM GES, V36, P701
[6]
1953, Patent No. 951933