Avramenko,V.G. et al.
J. Gen. Chem. USSR (Engl. Transl.), 1962 , vol. 32, # 4 p. 1119 - 1123,1095 - 1098

Belov,V.N. et al.
Zhurnal Organicheskoi Khimii, 1965 , vol. 1, # 4 p. 686 - 688,686 - 688

Ansell,M.F.; Whitfield,G.F.
Journal of the Chemical Society [Section] C: Organic, 1971 , p. 1098 - 1109

Bergel'son,L.D. et al.
Bulletin of the Academy of Sciences of the USSR, Division of Chemical Science (English Translation), 1960 , p. 1779
Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, 1960 , # 10 p. 1900