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Journal of Organic Chemistry USSR (English Translation), 1987 , vol. 23, p. 2076 - 2085
Zhurnal Organicheskoi Khimii, 1987 , vol. 23, # 11 p. 2354 - 2364

Donskaya, N. A.; Akhachinskaya, T. V.; Leonova, T. V.; Shulishov, E. V.; Shabarov, Yu. S.
Journal of Organic Chemistry USSR (English Translation), 1980 , vol. 16, p. 487 - 493
Zhurnal Organicheskoi Khimii, 1980 , vol. 16, # 3 p. 563 - 571