@article{DAN_1990_311_2_a2,
     author = {B. V. Kapitonov},
     title = {On the decrease, as $t\to\infty$, of solutions of an exterior boundary value problem for a strongly hyperbolic system},
     journal = {Doklady Akademii Nauk},
     pages = {273--277},
     publisher = {mathdoc},
     volume = {311},
     number = {2},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1990_311_2_a2/}
}