@article{1153494554,
author = {Ebert, Marcelo Rempel},
title = {On the Cauchy problem for $2\times 2$ weakly hyperbolic systems},
journal = {Osaka J. Math.},
volume = {42},
number = {1},
year = {2005},
pages = { 831-860},
language = {en},
url = {http://dml.mathdoc.fr/item/1153494554}
}
Ebert, Marcelo Rempel. On the Cauchy problem for $2\times 2$ weakly hyperbolic systems. Osaka J. Math., Tome 42 (2005) no. 1, pp. 831-860. http://gdmltest.u-ga.fr/item/1153494554/