%0 Journal Article %A B. V. Kapitonov %T On the decrease, as $t\to\infty$, of solutions of an exterior boundary value problem for a strongly hyperbolic system %J Doklady Akademii Nauk %D 1990 %P 273-277 %V 311 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1990_311_2_a2/ %G ru %F DAN_1990_311_2_a2