%0 Journal Article %A Yu. I. Golechkov %T Preservation of boundedness properties of solutions under perturbation of a nonlinear $n$-dimensional differential system %J Differencialʹnye uravneniâ %D 1985 %P 748-752 %V 21 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1985_21_5_a1/ %G ru %F DE_1985_21_5_a1