@article{DE_1979_15_12_a18,
     author = {L. E. Vostrova},
     title = {Boundary value problems for a wave equation in noncharacteristic domains},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2266--2268},
     publisher = {mathdoc},
     volume = {15},
     number = {12},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1979_15_12_a18/}
}