Mamedov, E. I.; Ismailov, A. G.; Goyushov, R. D.; Ibragimov, V. G.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1991 , vol. 27, # 9 p. 947 - 951
Khimiya Geterotsiklicheskikh Soedinenii, 1991 , # 9 p. 1185 - 1189

Mamedov, E. J.; Ismailov, A. G.; Kozhushkov, S. I.; Zefirov, N. S.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1992 , vol. 28, # 3 p. 260 - 265
Khimiya Geterotsiklicheskikh Soedinenii, 1992 , # 3 p. 313 - 319

Kulinkovich, O. G.; Tishchenko, I. G.; Sorokin, V. L. Journal of Organic Chemistry USSR (English Translation), 1985 ,  vol. 21,  # 8  p. 1514 - 1518Zhurnal Organicheskoi Khimii, 1985 ,  vol. 21,  # 8  p. 1658 - 1663