%0 Journal Article %A A. I. Perov %T Sufficient conditions for the stability of linear systems with constant coefficients in critical cases %J Differencialʹnye uravneniâ %D 1997 %P 1349-1357 %V 33 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1997_33_10_a7/ %G ru %F DE_1997_33_10_a7