Lutsenko, V. V.; Blyum, R. A.; Mikul'skene, G. V.; Mikul'skis, P. P.
Journal of Organic Chemistry USSR (English Translation), 1986 , vol. 22, # 7 p. 1366 - 1371
Zhurnal Organicheskoi Khimii, 1986 , vol. 22, # 7 p. 1514 - 1520