Shvaika, O. P.; Lipnitskii, V. F.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 11 p. 1246
Khimiya Geterotsiklicheskikh Soedinenii, 1983 , # 11 p. 1563

Shvaika, O. P.; Lipnitskii, V. F.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1983 , vol. 19, # 11 p. 1246
Khimiya Geterotsiklicheskikh Soedinenii, 1983 , # 11 p. 1563