Baklan, V. F.; Khil'chevskii, A. N.; Sologub, L. S.; Kukhar, V. P.
Journal of Organic Chemistry USSR (English Translation), 1992 , vol. 28, # 10 p. 1680 - 1683
Zhurnal Organicheskoi Khimii, 1992 , vol. 28, # 10 p. 2098 - 2102