%0 Journal Article %A R. K. Romanovskii %T Stability of solutions to the Cauchy problem for linear differential equations of the hyperbolic type %J Doklady Akademii Nauk %D 1965 %P 1077-1080 %V 163 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1965_163_5_a8/ %G ru %F DAN_1965_163_5_a8