%0 Journal Article %A Yu. F. Korobeinik %T ``Hereditary'' properties of systems of operator equations %J Differencialʹnye uravneniâ %D 1990 %P 1510-1521 %V 26 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1990_26_9_a4/ %G ru %F DE_1990_26_9_a4