Kotovskaya, S. A.; Mokrushina, G. A.; Postovskii, I. Ya.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 3 p. 303 - 306
Khimiya Geterotsiklicheskikh Soedinenii, 1983 , # 3 p. 373 - 376

Kotovskaya, S. A.; Mokrushina, G. A.; Postovskii, I. Ya.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 3 p. 303 - 306
Khimiya Geterotsiklicheskikh Soedinenii, 1983 , # 3 p. 373 - 376