@article{IVM_1978_3_a2,
     author = {N. L. Vasilevskii and A. A. Karelin},
     title = {Investigation of a~boundary value problem for a~partial differential equation of mixed type by means of reduction to a~singular integral equation with {a~Carleman} shift},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {15--19},
     publisher = {mathdoc},
     number = {3},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1978_3_a2/}
}