%0 Journal Article %A V. I. Arnol'd %A Yu. S. Ilyashenko %T Ordinary differential equations %J Itogi Nauki i Tekhniki. Seriya Sovremennye Problemy Matematiki. Fundamental'nye Napravleniya %D 1985 %P 7-140 %V 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/INTF_1985_1_a1/ %G ru %F INTF_1985_1_a1