%0 Journal Article %A B. F. Bylov %T The simultaneous stability of the characteristic exponents of mutually adjoint systems of linear differential equations %J Differencialʹnye uravneniâ %D 1970 %P 943-947 %V 6 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1970_6_6_a0/ %G ru %F DE_1970_6_6_a0