Shpinel', Ya.I.; Klimova, I.V.; Belyaev, E.Yu.
Journal of Organic Chemistry USSR (English Translation), 1991 , vol. 27, # 7 p. 1309 - 1312
Zhurnal Organicheskoi Khimii, 1991 , vol. 27, # 7 p. 1493 - 1497