Shchepin, V. V.; Rodygin, A. S.; Kulesh, I. A.; Lapkin, I. I.
Journal of Organic Chemistry USSR (English Translation), 1987 , vol. 23, # 5 p. 840 - 843
Zhurnal Organicheskoi Khimii, 1987 , vol. 23, # 5 p. 930 - 934