%0 Journal Article %A I. T. Kiguradze %A B. Puzha %T Certain boundary value problems for a system of ordinary differential equations %J Differencialʹnye uravneniâ %D 1976 %P 2139-2148 %V 12 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1976_12_12_a2/ %G ru %F DE_1976_12_12_a2