Yurovskaya, M. A.; Druzhinina, V. V.; Snetkova, E. V.; Bundel', Yu. G.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 3 p. 289 - 292
Khimiya Geterotsiklicheskikh Soedinenii, 1983 , # 3 p. 356 - 360

Yurovskaya, M. A.; Druzhinina, V. V.; Tyurekhodshaeva, M. A.; Bundel', Yu. G.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1984 , vol. 20, # 1 p. 58 - 61
Khimiya Geterotsiklicheskikh Soedinenii, 1984 , vol. 20, # 1 p. 69 - 72