Afonin, A. V.; Andriyankov, M. A.; Pertsikov, B. Z.; Voronov, V. K.
Journal of Organic Chemistry USSR (English Translation), 1986 , vol. 22, # 11 p. 2202 - 2204
Zhurnal Organicheskoi Khimii, 1986 , vol. 22, # 11 p. 2451 - 2454