共 4 条
[1]
DRASILNIKOVA LN, 1968, SB NAUCHN T GORNOMET, P23
[2]
IVANCHEV G, 1961, DITHIZONE ITS APPLIC
[3]
IVANKOVA AI, 1962, T KAZIMS, V7, P227
[4]
KISH PP, 1974, Patent No. 411043