%0 Journal Article %A M. I. Rakhimberdiev %T The stability of the singular exponents of a linear system, and the closure of the set of linear systems with exponential dichotomy.~I %J Differencialʹnye uravneniâ %D 1974 %P 659-670 %V 10 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1974_10_4_a10/ %G ru %F DE_1974_10_4_a10