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@article{DE_1977_13_2_a18, author = {I. V. Maiorov}, title = {Some problems for a certain degenerate hyperbolic system}, journal = {Differencialʹnye uravneni\^a}, pages = {369--372}, publisher = {mathdoc}, volume = {13}, number = {2}, year = {1977}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1977_13_2_a18/} }
I. V. Maiorov. Some problems for a certain degenerate hyperbolic system. Differencialʹnye uravneniâ, Tome 13 (1977) no. 2, pp. 369-372. http://geodesic.mathdoc.fr/item/DE_1977_13_2_a18/