Ruolene, Yu. I.; Adomenas, P. V.; Sirutkaitis, R. A.; Denis, G. I.
Journal of Organic Chemistry USSR (English Translation), 1984 , vol. 20, p. 1187 - 1191
Zhurnal Organicheskoi Khimii, 1984 , vol. 20, # 6 p. 1305 - 1310