@article{DE_1972_8_1_a5,
     author = {T. Sh. Kal'menov},
     title = {A criterion for the continuity of the solution of the {Goursat} problem for a certain degenerate equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {41--54},
     publisher = {mathdoc},
     volume = {8},
     number = {1},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1972_8_1_a5/}
}