Markovskii, L. N.; Rudkevich, D. M.; Kal'chenko, V. I.; Tsymbal, I. F.
Journal of Organic Chemistry USSR (English Translation), 1990 , vol. 26, # 11 p. 2094 - 2100
Zhurnal Organicheskoi Khimii, 1990 , vol. 26, # 11 p. 2425 - 2433