%0 Journal Article %A M. M. Aripov %A D. S. Echmatov %T Asymptotic representations of solutions of a class of second-order nonlinear differential equations %J Differencialʹnye uravneniâ %D 1996 %P 723-730 %V 32 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1996_32_6_a0/ %G ru %F DE_1996_32_6_a0