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@article{DE_1981_17_3_a14, author = {N. P. Kulikov}, title = {The {Riemann} method for degenerating quasilinear hyperbolic equations of second order}, journal = {Differencialʹnye uravneni\^a}, pages = {566--567}, publisher = {mathdoc}, volume = {17}, number = {3}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1981_17_3_a14/} }
N. P. Kulikov. The Riemann method for degenerating quasilinear hyperbolic equations of second order. Differencialʹnye uravneniâ, Tome 17 (1981) no. 3, pp. 566-567. http://geodesic.mathdoc.fr/item/DE_1981_17_3_a14/