@incollection{MSMF_1972__31-32__83_0, author = {Chazarain, Jacques}, title = {Caract\'erisation des probl\`emes mixtes hyperboliques bien pos\'es}, booktitle = {Colloque d'analyse fonctionnelle (Bordeaux, 1971)}, author = {Collectif}, series = {M\'emoires de la Soci\'et\'e Math\'ematique de France}, pages = {83--88}, publisher = {Soci\'et\'e math\'ematique de France}, number = {31-32}, year = {1972}, doi = {10.24033/msmf.67}, zbl = {0247.35078}, mrnumber = {50 #7834}, url = {http://archive.numdam.org/articles/10.24033/msmf.67/} }