%0 Journal Article %A M. I. Urbanovich %T The Cauchy matrix of a linear system of ordinary differential equations %J Differencialʹnye uravneniâ %D 1970 %P 320-327 %V 6 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1970_6_2_a10/ %G ru %F DE_1970_6_2_a10