@article{DE_1983_19_1_a5,
     author = {O. M. Dzhokhadze},
     title = {Characteristic {Goursat} problem in the large for a class of quasilinear hyperbolic equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {30--37},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1983_19_1_a5/}
}