%0 Journal Article %A S. Abdinazarov %T General boundary value problems for a third-order equation with multiple characteristics %J Differencialʹnye uravneniâ %D 1981 %P 3-12 %V 17 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1981_17_1_a0/ %G ru %F DE_1981_17_1_a0