Morozova, N. G.; Krivoichenko, I. Ch.; Anikin, M. V.; Serebrennikova, G. A.
Journal of Organic Chemistry USSR (English Translation), 1991 , vol. 27, # 12 p. 2301 - 2304
Zhurnal Organicheskoi Khimii, 1991 , vol. 27, # 12 p. 2584 - 2588