%0 Journal Article %A L. I. Zagulyaeva %T Conditions for the existence of a solution of a certain multipoint boundary value problem for a system of differential equations %J Differencialʹnye uravneniâ %D 1972 %P 725-726 %V 8 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1972_8_4_a18/ %G ru %F DE_1972_8_4_a18