%0 Journal Article %A T. N. Harutyunyan %A G. H. Sahakyan %T On a spectral problem for a system of partial differential equations %J Proceedings of the Yerevan State University. Physical and mathematical sciences %D 2005 %P 40-46 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/UZERU_2005_3_a1/ %G ru %F UZERU_2005_3_a1