%0 Journal Article %A M. M. Belova %T Bounded solutions of systems of second order ordinary differential equations %J Doklady Akademii Nauk %D 1968 %P 266-268 %V 180 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1968_180_2_a1/ %G ru %F DAN_1968_180_2_a1