Chemistry of Heterocyclic Compounds (New York, NY, United States), , vol. 19, # 6 p. 684
Khimiya Geterotsiklicheskikh Soedinenii, , vol. 19, # 6 p. 843 - 844
Chemistry of Heterocyclic Compounds (New York, NY, United States), , vol. 19, # 6 p. 684
Khimiya Geterotsiklicheskikh Soedinenii, , vol. 19, # 6 p. 843 - 844