Hassanein, Salah Mohamed; Burmakov, A. I.; Bloshchitsa, F. A.; Yagupol'skii, L. M.
Journal of Organic Chemistry USSR (English Translation), 1988 , vol. 24, # 8 p. 1473 - 1477
Zhurnal Organicheskoi Khimii, 1988 , vol. 24, # 8 p. 1633 - 1638