Chemistry of Heterocyclic Compounds (New York, NY, United States), , vol. 23, # 4 p. 422 - 425
Khimiya Geterotsiklicheskikh Soedinenii, , # 4 p. 508 - 512
Chemistry of Heterocyclic Compounds (New York, NY, United States), , vol. 23, # 4 p. 422 - 425
Khimiya Geterotsiklicheskikh Soedinenii, , # 4 p. 508 - 512