Lapachev, V. V.; Stekhova, S. A.; Mainagashev, I. Ya.; Fedotov, M. A.; Khall, V. E.; Mamaev, V. P.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1986 , vol. 22, # 6 p. 633 - 639
Khimiya Geterotsiklicheskikh Soedinenii, 1986 , vol. 22, # 6 p. 802 - 809

Kolehmainen, Erkki; Osmiaowski, Borys; Nissinen, Maija; Kauppinen, Reijo; Gawinecki, Ryszard
Journal of the Chemical Society. Perkin Transactions 2, 2000 , # 11 p. 2185 - 2191

Lapachev, V. V.; Stekhova, S. A.; Mainagashev, I. Ya.; Fedotov, M. A.; Khall, V. E.; Mamaev, V. P.
Chemistry of Heterocyclic Compounds (New York, NY, United States), 1986 , vol. 22, # 6 p. 633 - 639
Khimiya Geterotsiklicheskikh Soedinenii, 1986 , vol. 22, # 6 p. 802 - 809