%0 Journal Article %A A. P. Plekhotin %T Theorem on the existence and uniqueness of the solution to a boundary value problem for a system of ordinary differential equations %J Doklady Akademii Nauk %D 1958 %P 613-615 %V 123 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1958_123_4_a8/ %G ru %F DAN_1958_123_4_a8