Tolstikov, G. A.; Novitskaya, N. N.; Shul'ts, E. E.
Journal of Organic Chemistry USSR (English Translation), 1982 , vol. 18, # 6 p. 1134 - 1141
Zhurnal Organicheskoi Khimii, 1982 , vol. 18, # 6 p. 1307 - 1314