@article{IM_1984__75_143095,
     author = {S. Alinahc and G. Metivier},
     title = {Propagation de l'analyticit\'e des solutions de syst\`emes hyperboliques non-lin\'eaires.},
     journal = {Inventiones mathematicae},
     pages = {189--204},
     publisher = {mathdoc},
     volume = {75},
     year = {1984},
     zbl = {0545.35063},
     url = {http://geodesic.mathdoc.fr/item/IM_1984__75_143095/}
}