Fetyukhin, V. N.; Esipenko, A. A.; Samarai, L. I.
Journal of Organic Chemistry USSR (English Translation), 1990 , vol. 26, # 2.2 p. 287 - 292
Zhurnal Organicheskoi Khimii, 1990 , vol. 26, # 2 p. 339 - 346