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Chemistry of Heterocyclic Compounds (New York, NY, United States), 1993 , vol. 29, # 9 p. 1054 - 1058
Khimiya Geterotsiklicheskikh Soedinenii, 1993 , # 9 p. 1233 - 1238

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Chemistry of Heterocyclic Compounds (New York, NY, United States), 1993 , vol. 29, # 9 p. 1054 - 1058
Khimiya Geterotsiklicheskikh Soedinenii, 1993 , # 9 p. 1233 - 1238

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