Gulevskaya, A. V.; Kuz'menko, V. V.; Pozharskii, A. F.; Kuz'menko, T. I.
Journal of Organic Chemistry USSR (English Translation), 1990 , vol. 26, # 6 p. 1142 - 1145
Zhurnal Organicheskoi Khimii, 1990 , vol. 26, # 6 p. 1322 - 1326