Zakharkin, L. I.; Guseva, V. V.
Russian Chemical Bulletin, 1994 , vol. 43, # 5 p. 835 - 837
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1994 , # 5 p. 891 - 893
Zakharkin, L. I.; Guseva, V. V.
Russian Chemical Bulletin, 1994 , vol. 43, # 5 p. 835 - 837
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1994 , # 5 p. 891 - 893