Tolstikov, G. A.; Novitskaya, N. N.; Shul'ts, E. E.
Journal of Organic Chemistry USSR (English Translation), 1982 , vol. 18, # 6 p. 1129 - 1134
Zhurnal Organicheskoi Khimii, 1982 , vol. 18, # 6 p. 1301 - 1306