Sadovnikova, N. V.; Fedotov, V. P.; Shvachkin, Yu. P.; Shishkina, A. A.; Kolomeitseva, L. A.
Pharmaceutical Chemistry Journal, 1987 , vol. 21, # 12 p. 838 - 842
Khimiko-Farmatsevticheskii Zhurnal, 1987 , vol. 21, # 12 p. 1424 - 1427