Ivanov, Yu. Ya.; Uvarov, V. I.; Brel', V. K.; Martynov, I. V.
Pharmaceutical Chemistry Journal, 1988 , vol. 22, # 5 p. 356 - 358
Khimiko-Farmatsevticheskii Zhurnal, 1988 , vol. 22, # 5 p. 538 - 540