Dronov, V. I.; Nigmatullina, R. F.; Vasil'eva, E. V.; Nikitin, Yu. E.
Journal of Organic Chemistry USSR (English Translation), 1985 , vol. 21, # 5 p. 1008 - 1011
Zhurnal Organicheskoi Khimii, 1985 , vol. 21, # 5 p. 1107 - 1111