Suvorov, A. A.; Malov, M. Yu.; Kuznetsov, M. A.
Journal of Organic Chemistry USSR (English Translation), 1987 , vol. 23, # 9 p. 1738 - 1746
Zhurnal Organicheskoi Khimii, 1987 , vol. 23, # 9 p. 1962 - 1971

Severn,D.J.; Kosower,E.M.
Journal of the American Chemical Society, 1969 , vol. 91, p. 1710 - 1717

Suvorov, A. A.; Malov, M. Yu.; Kuznetsov, M. A.
Journal of Organic Chemistry USSR (English Translation), 1987 , vol. 23, # 9 p. 1738 - 1746
Zhurnal Organicheskoi Khimii, 1987 , vol. 23, # 9 p. 1962 - 1971