%0 Journal Article %A Yu. G. Sentsov %T On the Riesz basis property of a~system of eigen- and associated functions for a~differential operator with integral conditions %J Matematičeskie zametki %D 1999 %P 948-952 %V 65 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1999_65_6_a19/ %G ru %F MZM_1999_65_6_a19