@article{DAN_1984_275_4_a20,
     author = {V. P. Fedosov and N. N. Yanenko},
     title = {Solution of mixed boundary value problems for the wave equation in},
     journal = {Doklady Akademii Nauk},
     pages = {852--857},
     publisher = {mathdoc},
     volume = {275},
     number = {4},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1984_275_4_a20/}
}