Lopatinskaya, Kh. Ya.; Skorobogatova, Z. M.; Sheinkman, A. K.; Zaritovskaya, T. A.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1985 , vol. 21, # 6 p. 675 - 679
Khimiya Geterotsiklicheskikh Soedinenii, 1985 , vol. 21, # 6 p. 810 - 815

Sheinkman, A. K.; Lopatinskaya, Kh. Ya.; Klyuev, N. A.; Torosyan, Zh. K.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1980 , vol. 16, # 2 p. 174 - 178
Khimiya Geterotsiklicheskikh Soedinenii, 1980 , vol. 16, # 2 p. 234 - 238