@article{DE_1983_19_12_a11,
     author = {K. A. Kasymov and B. M. Kadykenov},
     title = {The {Cauchy} problem with initial jump for singularly perturbed linear hyperbolic equations degenerating into a first-order equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2114--2122},
     publisher = {mathdoc},
     volume = {19},
     number = {12},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1983_19_12_a11/}
}