%0 Journal Article %A E. A. Barkova %A P. P. Zabreiko %T The Cauchy problem for higher-order differential equations with deteriorating operators %J Differencialʹnye uravneniâ %D 1991 %P 472-478 %V 27 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1991_27_3_a11/ %G ru %F DE_1991_27_3_a11