Chemistry of Heterocyclic Compounds (New York, NY, United States), , vol. 20, # 7 p. 779 - 783
Khimiya Geterotsiklicheskikh Soedinenii, , # 7 p. 953 - 961
Chemistry of Heterocyclic Compounds (New York, NY, United States), , vol. 20, # 7 p. 779 - 783
Khimiya Geterotsiklicheskikh Soedinenii, , # 7 p. 953 - 961