@article{DE_1994_30_9_a9, author = {A. P. Svetnoi and N. S. Yashchuk}, title = {On an approximate solution of the {Riemann} problem with a discontinuous coefficient and right-hand side on an open contour}, journal = {Differencialʹnye uravneni\^a}, pages = {1566--1573}, publisher = {mathdoc}, volume = {30}, number = {9}, year = {1994}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1994_30_9_a9/} }