@article{MAN_1994__298_2_165183,
     author = {Paul Godin},
     title = {Global sound waves for quasilinear second order wave equations.},
     journal = {Mathematische Annalen},
     pages = {497--532},
     publisher = {mathdoc},
     volume = {298},
     number = {2},
     year = {1994},
     zbl = {0790.35071},
     url = {http://geodesic.mathdoc.fr/item/MAN_1994__298_2_165183/}
}