Usachenko, V. G.; Petrenko, G. P.; Anikin, V. F.; Lyutikova, A. A.
Journal of Organic Chemistry USSR (English Translation), 1985 , p. 1186 - 1189
Zhurnal Organicheskoi Khimii, 1985 , vol. 21, # 6 p. 1303 - 1306