%0 Journal Article %A V. A. Kazhan %T Completeness in $L_p$ of a system of eigen- and associated functions of elliptic operators in unbounded domains %J Differencialʹnye uravneniâ %D 1984 %P 1816-1819 %V 20 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1984_20_10_a22/ %G ru %F DE_1984_20_10_a22