Gilyarov, V. A.; Tikhonina, N, A.; Shcherbina, T. M.; Kabachnik, M. I.
J. Gen. Chem. USSR (Engl. Transl.), 1980 , vol. 50, # 7 p. 1438 - 1442,1157 - 1161

Nifant'ev,E.E. et al.
Journal of Organic Chemistry USSR (English Translation), 1975 , vol. 11, p. 2235 - 2239
Zhurnal Organicheskoi Khimii, 1975 , vol. 11, # 10 p. 2206 - 2210

Arbuzov, B. A.; Arshinova, R. P.; Nabiullin, V. N.; Il'yasov, A. V.; Gubaidullin, R. N.; Sorokina, T. D.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1983 , vol. 32, # 4 p. 725 - 731
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1983 , # 4 p. 796 - 803