Dadali, V. A.; Zubareva, T. M.; Litvinenko, L. M.; Simanenko, Yu. S. Journal of Organic Chemistry USSR (English Translation), 1984 , vol. 20, # 8 p. 1543 - 1551 Zhurnal Organicheskoi Khimii, 1984 , vol. 20, # 8 p. 1695 - 1704