%0 Journal Article %A L. I. Zagulyaeva %T Conditions for the solvability of a certain boundary value problem for a system of differential equations %J Differencialʹnye uravneniâ %D 1972 %P 774-777 %V 8 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1972_8_5_a3/ %G ru %F DE_1972_8_5_a3