Ikrina, M. A.; Barysheva, N. A.; Simonov, V. D.; Talzi, V. P.
Journal of Organic Chemistry USSR (English Translation), 1986 , vol. 22, # 12 p. 2230 - 2235
Zhurnal Organicheskoi Khimii, 1986 , vol. 22, # 12 p. 2484 - 2489