Manaev, Ya.A.; Perevalov, V.P.; Andreeva, M.A.; Stepanov, B.I.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1984 , vol. 20, # 8 p. 918 - 920
Khimiya Geterotsiklicheskikh Soedinenii, 1984 , # 8 p. 1123 - 1125

Manaev, Ya.A.; Perevalov, V.P.; Andreeva, M.A.; Stepanov, B.I.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1984 , vol. 20, # 8 p. 918 - 920
Khimiya Geterotsiklicheskikh Soedinenii, 1984 , # 8 p. 1123 - 1125