Rutkovskii, G. V.; Begunov, A. V.; Ignat'ev, Yu. A.
Journal of Organic Chemistry USSR (English Translation), 1983 , vol. 19, # 4 p. 701 - 705
Zhurnal Organicheskoi Khimii, 1983 , vol. 19, # 4 p. 793 - 797