@article{DE_1982_18_11_a4,
     author = {F. T. Baranovskii},
     title = {The {Goursat} problem for a hyperbolic equation that degenerates in the interior and on the boundary of the domain},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1879--1887},
     publisher = {mathdoc},
     volume = {18},
     number = {11},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1982_18_11_a4/}
}