%0 Journal Article %A M. Haydukevich %A V. A. Chernyatin %T On the existence and stability of periodic solutions of an inhomogeneous hyperbolic equation %J Differencialʹnye uravneniâ %D 1999 %P 1691-1700 %V 35 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1999_35_12_a11/ %G ru %F DE_1999_35_12_a11