%0 Journal Article %A A. A. Shishkin %T Asymptotic behavior of solutions of boundary value problems for systems of linear ordinary differential equations with a small parameter multiplying the derivative %J Differencialʹnye uravneniâ %D 1972 %P 615-632 %V 8 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1972_8_4_a5/ %G ru %F DE_1972_8_4_a5