%0 Journal Article %A S. A. Bespalova %A Yu. A. Klokov %T A boundary value operator with a condition at infinity for third-order equations %J Differencialʹnye uravneniâ %D 1989 %P 1441-1443 %V 25 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1989_25_8_a21/ %G ru %F DE_1989_25_8_a21