@article{ASENS_2008_4_41_2_177_0, author = {Colombini, Ferruccio and M\'etivier, Guy}, title = {The {Cauchy} problem for wave equations with non {Lipschitz} coefficients; {Application} to continuation of solutions of some nonlinear wave equations}, journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure}, pages = {177--220}, publisher = {Soci\'et\'e math\'ematique de France}, volume = {Ser. 4, 41}, number = {2}, year = {2008}, doi = {10.24033/asens.2066}, zbl = {1172.35041}, mrnumber = {2468481}, language = {en}, url = {http://archive.numdam.org/articles/10.24033/asens.2066/} }