Lapidus, A. L.; Rodin, A. P.; Pruidze, I. G.; Ugrak, B. I.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1990 , vol. 39, # 7.2 p. 1509 - 1511
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1990 , # 7 p. 1661 - 1662
Brown, Herbert C.; Basavaiah, Deevi; Kulkarni, Surendra U.; Bhat, Narayan G.; Prasad, J. V. N. Vara
Journal of Organic Chemistry, 1988 , vol. 53, # 2 p. 239 - 246