@article{AIF_1972__22_4_193_0, author = {Chazarain, Jacques and Piriou, Alain}, title = {Caract\'erisation des probl\`emes mixtes hyperboliques bien pos\'es}, journal = {Annales de l'Institut Fourier}, pages = {193--237}, publisher = {Institut Fourier}, volume = {22}, number = {4}, year = {1972}, doi = {10.5802/aif.438}, zbl = {0234.35052}, mrnumber = {48 #11794}, language = {fr}, url = {http://www.numdam.org/articles/10.5802/aif.438/} }