Chernyavskaya, M. A.; Stefanovich, V. V.; Sergeeva, I. A.; Belova, A. S.
Pharmaceutical Chemistry Journal, 1984 , vol. 18, # 11 p. 784 - 787
Khimiko-Farmatsevticheskii Zhurnal, 1984 , vol. 18, # 11 p. 1344 - 1348