%0 Journal Article %A V. S. Buslaev %T Asymptotic comparison of differential equations %J Algebra i analiz %D 2002 %P 1-18 %V 14 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2002_14_4_a0/ %G ru %F AA_2002_14_4_a0