%0 Journal Article %A E. I. Moiseev %T On the absence of the basis property in a system of root functions for a nonlocal boundary value problem %J Differencialʹnye uravneniâ %D 1994 %P 2082-2093 %V 30 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1994_30_12_a6/ %G ru %F DE_1994_30_12_a6