@article{DE_1972_8_1_a0,
     author = {V. A. Bryukhanov},
     title = {A mixed problem for a hyperbolic equation degenerate on a part of the bounday of a region},
     journal = {Differencialʹnye uravneni\^a},
     pages = {3--6},
     publisher = {mathdoc},
     volume = {8},
     number = {1},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1972_8_1_a0/}
}