共 6 条
[1]
ERBA C, 1977, Patent No. 849919
[2]
LAUBACH GD, 1960, Patent No. 2956054
[3]
Posner G. H., 1975, ORG REACT, V22
[5]
VASILIU G, 1963, ANAL U BUC, V12, P47
[6]
Walser A., 1978, US Patent, Patent No. 4118386