@article{1183667986, author = {Wakabayashi, Seiichiro}, title = {Remarks on hyperbolic systems of first order with constant coefficient characteristic polynomials}, journal = {Osaka J. Math.}, volume = {44}, number = {1}, year = {2007}, pages = { 363-397}, language = {en}, url = {http://dml.mathdoc.fr/item/1183667986} }
Wakabayashi, Seiichiro. Remarks on hyperbolic systems of first order with constant coefficient characteristic polynomials. Osaka J. Math., Tome 44 (2007) no. 1, pp. 363-397. http://gdmltest.u-ga.fr/item/1183667986/