Gavrilyuk, O. A.; Korchagina, D. V.; Osadchii, S. A.; Barkhash, V. A. Journal of Organic Chemistry USSR (English Translation), 1988 , vol. 24, p. 871 - 885 Zhurnal Organicheskoi Khimii, 1988 , vol. 24, # 5 p. 966 - 982