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Chemistry of Heterocyclic Compounds (New York, NY, United States), 1982 , vol. 18, # 3 p. 307 - 310
Khimiya Geterotsiklicheskikh Soedinenii, 1982 , vol. 18, # 3 p. 405 - 409

Solomko, Z. F.; Sheremet, V. I.; Khmel', M. P.; Avramenko, V. I.; Proshkina, V. N.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1982 , vol. 18, # 3 p. 307 - 310
Khimiya Geterotsiklicheskikh Soedinenii, 1982 , vol. 18, # 3 p. 405 - 409

Andreichikov, Yu. S.; Gein, V. L.; Kozlov, A. P.; Vinokurova, O. V.
Journal of Organic Chemistry USSR (English Translation), 1988 , vol. 24, p. 189 - 194
Zhurnal Organicheskoi Khimii, 1988 , vol. 24, # 1 p. 210 - 217

Andreichikov, Yu. S.; Gein, V. L.; Kozlov, A. P.; Vinokurova, O. V.
Journal of Organic Chemistry USSR (English Translation), 1988 , vol. 24, p. 189 - 194
Zhurnal Organicheskoi Khimii, 1988 , vol. 24, # 1 p. 210 - 217