%0 Journal Article %A Colombini, Ferruccio %A Métivier, Guy %T The Cauchy problem for wave equations with non Lipschitz coefficients; Application to continuation of solutions of some nonlinear wave equations %J Annales scientifiques de l'École Normale Supérieure %D 2008 %P 177-220 %V Ser. 4, 41 %N 2 %I Société mathématique de France %U https://doi.org/10.24033/asens.2066 %R 10.24033/asens.2066 %G en %F ASENS_2008_4_41_2_177_0