Popov, S.I.; Kopylova, T.M.; Andrievskii, A.M.; Medvedev, S.V.; Yatsenko, A.V.
Russian Journal of Organic Chemistry, 1994 , vol. 30, # 2 p. 279 - 285
Zhurnal Organicheskoi Khimii, 1994 , vol. 30, # 2 p. 266 - 272