Zefirov, N. S.; Koz'min, A. S.; Dan'kov, Yu. V.; Zhdankin, V. V.; Kirin, V. N. Journal of Organic Chemistry USSR (English Translation), 1984 , vol. 20, p. 205 - 213 Zhurnal Organicheskoi Khimii, 1984 , vol. 20, # 2 p. 233 - 242