%0 Journal Article %A V. M. Alekseev %T The asymptotic behaviour of solutions of slightly non-linear systems of ordinary differential equations %J Doklady Akademii Nauk %D 1960 %P 247-250 %V 134 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1960_134_2_a0/ %G ru %F DAN_1960_134_2_a0