%0 Journal Article %A O. V. Anashkin %T A study on stability in the case of constantly acting perturbations in the ``neutral case'' %J Differencialʹnye uravneniâ %D 1978 %P 1124-1127 %V 14 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1978_14_6_a17/ %G ru %F DE_1978_14_6_a17