共 27 条
[21]
SOMERVILLE IC, 1960, J AM LEATHER CHEM AS, V55, P670
[22]
SOMERVILLE IC, 1948, J AM LEATHER CHEM AS, V43, P345
[23]
SOMMERVILLE IC, 1943, J AM LEATHER CHEM AS, V38, P326
[24]
TURLEY HG, 1942, J AM LEATHER CHEM AS, V37, P391
[25]
WENDKOS J, 1953, J AM LEATHER CHEM AS, V48, P355
[26]
ZIMMERMANN W, 1943, MIKROCHEM MIKROCHIM, V31, P15
[27]
1965, OFFICIAL METHODS ANA