@article{DE_1981_17_2_a10,
     author = {V. N. Gol'dberg},
     title = {Convergence of the solution of a mixed problem for a hyperbolic system on the plane with singularly perturbed boundary condition to the solution of a degenerate},
     journal = {Differencialʹnye uravneni\^a},
     pages = {286--300},
     publisher = {mathdoc},
     volume = {17},
     number = {2},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1981_17_2_a10/}
}