%0 Journal Article %A V. M. Millionshchikov %T Linear systems of ordinary differential equations %J Differencialʹnye uravneniâ %D 1971 %P 387-390 %V 7 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1971_7_3_a0/ %G ru %F DE_1971_7_3_a0