Sigova, V. I.; Semyakina, N. V.; Zalesov, V. S.; Konshin, M. E.
Pharmaceutical Chemistry Journal, 1985 , vol. 19, # 3 p. 174 - 177
Khimiko-Farmatsevticheskii Zhurnal, 1985 , vol. 19, # 3 p. 159 - 163

Sigova, V. I.; Konshin, M. E.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1984 , vol. 20, # 6 p. 635 - 636
Khimiya Geterotsiklicheskikh Soedinenii, 1984 , vol. 20, # 6 p. 783 - 785