Gulevskaya, A. V.; Pozharskii, A. F.; Chernyshev, A. I.; Kuz'menko, V. V.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1992 , vol. 28, # 9 p. 1015 - 1020
Khimiya Geterotsiklicheskikh Soedinenii, 1992 , # 9 p. 1202 - 1207

Steppan, Heinz; Hammer, Joachim; Baur, Ralph; Gottlieb, Raphael; Pfleiderer, Wolfgang
Liebigs Annalen der Chemie, 1982 , # 12 p. 2135 - 2145

Gulevskaya, A. V.; Pozharskii, A. F.; Chernyshev, A. I.; Kuz'menko, V. V.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1992 , vol. 28, # 9 p. 1015 - 1020
Khimiya Geterotsiklicheskikh Soedinenii, 1992 , # 9 p. 1202 - 1207