%0 Journal Article %A A. A. Kon'kov %T On solutions of non-autonomous ordinary differential equations %J Izvestiya. Mathematics %D 2001 %P 285-327 %V 65 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_2001_65_2_a2/ %G en %F IM2_2001_65_2_a2