Korotkikh, N. I.; Aslanov, A. F.; Shvaika, O. P.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1991 , vol. 27, # 8 p. 915 - 917
Khimiya Geterotsiklicheskikh Soedinenii, 1991 , # 8 p. 1137 - 1140

Korotkikh, N. I.; Aslanov, A. F.; Shvaika, O. P.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1991 , vol. 27, # 8 p. 915 - 917
Khimiya Geterotsiklicheskikh Soedinenii, 1991 , # 8 p. 1137 - 1140