@article{DE_1994_30_8_a6,
     author = {M. I. Ganzha},
     title = {Asymptotic expansion of the solution of a mixed problem for the wave equation in the exterior of vanishing and nontrapping obstacles},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1350--1361},
     publisher = {mathdoc},
     volume = {30},
     number = {8},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_8_a6/}
}