Dronov, V. I.; Nigmatullina, R. F.; Makhmutova, I. Kh.; Nikitin, Yu. E.
Journal of Organic Chemistry USSR (English Translation), 1982 , vol. 18, p. 468 - 470
Zhurnal Organicheskoi Khimii, 1982 , vol. 18, # 3 p. 535 - 537