Kotel'nikova, N. V.; Leonova, T. S.; Ankudinov, I. V.; Znamenskii, V. V.; Yashunskii, V. G.
Pharmaceutical Chemistry Journal, 1991 , vol. 25, # 6 p. 402 - 404
Khimiko-Farmatsevticheskii Zhurnal, 1991 , vol. 25, # 6 p. 42 - 44