Melikyan, G. G.; Tosunyan, A. A.; Badanyan, Sh. O.
Journal of Organic Chemistry USSR (English Translation), 1991 , vol. 27, # 10 p. 1808 - 1813
Zhurnal Organicheskoi Khimii, 1991 , vol. 27, # 10 p. 2045 - 2051