Kremzer, A. A.; Strokin, Yu. V.; Samura, B. A.; Steblyuk, P. N.
Pharmaceutical Chemistry Journal, 1981 , vol. 15, # 6 p. 407 - 411
Khimiko-Farmatsevticheskii Zhurnal, 1981 , vol. 15, # 6 p. 59 - 64