%0 Journal Article %A V. V. Kucherenko %A Yu. V. Osipov %T Asymptotic solutions of ordinary differential equations with degenerate symbol %J Sbornik. Mathematics %D 1983 %P 75-104 %V 46 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_1983_46_1_a3/ %G en %F SM_1983_46_1_a3