Bagdasaryan, G. B.; Badalyan, K. S; Indzhikyan, M. G.
Journal of Organic Chemistry USSR (English Translation), 1989 , vol. 25, # 9.2 p. 1745 - 1746
Zhurnal Organicheskoi Khimii, 1989 , vol. 25, # 9 p. 1931 - 1933