%0 Journal Article %A N. J. Yurchuk %T The method of energy inequalities in the investigation of some degenerate linear operator-differential equations %J Differencialʹnye uravneniâ %D 1978 %P 2196-2211 %V 14 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1978_14_12_a12/ %G ru %F DE_1978_14_12_a12