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Arutyunyan, A. A.; Melik-Ogadzhanyan, R. G.; Alaverdova, L. G.; Papoyan, S. A.; Ter-Zakharyan, Yu. Z.; et al.
Pharmaceutical Chemistry Journal, 1989 , vol. 23, # 10 p. 837 - 840
Khimiko-Farmatsevticheskii Zhurnal, 1989 , vol. 23, # 10 p. 1223 - 1226