Chemistry of Heterocyclic Compounds (New York, NY, United States), , vol. 25, # 5 p. 547 - 550
Khimiya Geterotsiklicheskikh Soedinenii, , # 5 p. 654 - 656
Chemistry of Heterocyclic Compounds (New York, NY, United States), , vol. 25, # 5 p. 547 - 550
Khimiya Geterotsiklicheskikh Soedinenii, , # 5 p. 654 - 656