%0 Journal Article %A A. M. Il'in %A E. F. Lelikova %T On asymptotic approximations of solutions of an equation with a~small parameter %J Algebra i analiz %D 2010 %P 109-126 %V 22 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2010_22_6_a5/ %G ru %F AA_2010_22_6_a5