%0 Journal Article %A A. V. Babin %T Polynomial solvability of differential equations with coefficients from classes of infinitely differentiable functions %J Matematičeskie zametki %D 1983 %P 249-260 %V 34 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1983_34_2_a10/ %G ru %F MZM_1983_34_2_a10