Kopranenkov, V. N.; Makarova, E. A.; Luk'yanets, E. A.
Journal of Organic Chemistry USSR (English Translation), 1981 , vol. 17, # 2 p. 303 - 306
Zhurnal Organicheskoi Khimii, 1981 , vol. 17, # 2 p. 358 - 361