%0 Journal Article %A Yu. S. Èidel'man %T A boundary value problem for a differential equation with a parameter %J Differencialʹnye uravneniâ %D 1978 %P 1335-1337 %V 14 %N 7 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1978_14_7_a24/ %G ru %F DE_1978_14_7_a24