%0 Journal Article %A V. V. Varlamov %T On a hyperbolic equation that describes wave processes in media %J Doklady Akademii Nauk %D 1990 %P 28-32 %V 314 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1990_314_1_a5/ %G ru %F DAN_1990_314_1_a5