%0 Journal Article %A V. G. Raskin %T The solvability of operator-differential equations of arbitrary order %J Differencialʹnye uravneniâ %D 1976 %P 362-364 %V 12 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1976_12_2_a23/ %G ru %F DE_1976_12_2_a23