Chemistry of Heterocyclic Compounds (New York, NY, United States), , vol. 23, # 3 p. 275 - 281
Khimiya Geterotsiklicheskikh Soedinenii, , vol. 23, # 3 p. 329 - 336

Chemistry of Heterocyclic Compounds (New York, NY, United States), , vol. 23, # 3 p. 275 - 281
Khimiya Geterotsiklicheskikh Soedinenii, , vol. 23, # 3 p. 329 - 336