Donskaya, N. A.; Bessmertnikh, A. G.; Shabarov, Yu. S.
Journal of Organic Chemistry USSR (English Translation), 1989 , vol. 25, # 2.1 p. 295 - 301
Zhurnal Organicheskoi Khimii, 1989 , vol. 25, # 2 p. 332 - 339