%0 Journal Article %A A. T. Taldykin %A E. A. Isakova %T Approximations and expansions of solutions of linear boundary value problems with parameters %J Differencialʹnye uravneniâ %D 1987 %P 2014-2017 %V 23 %N 11 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1987_23_11_a26/ %G ru %F DE_1987_23_11_a26