Sharanin, Yu. A.; Shestopalov, A. M.; Nesterov, V. N.; Melenchuk, S. N.; Promonenkov, V. K.; et al.
Journal of Organic Chemistry USSR (English Translation), 1989 , vol. 25, # 6.2 p. 1189 - 1196
Zhurnal Organicheskoi Khimii, 1989 , vol. 25, # 6 p. 1323 - 1330