Shtark, A. A.; Chuikova, T. V.; Shteingarts, V. D. Journal of Organic Chemistry USSR (English Translation), 1984 , vol. 20, # 5 p. 960 - 967 Zhurnal Organicheskoi Khimii, 1984 , vol. 20, # 5 p. 1055 - 1063