@incollection{JEDP_1992____A13_0, author = {Ferruccio Colombini}, title = {Quelques remarques sur le probl\`eme de {Cauchy} pour des \'equations faiblement hyperboliques}, booktitle = {}, series = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {13}, pages = {1--6}, publisher = {\'Ecole polytechnique}, year = {1992}, zbl = {0779.35069}, mrnumber = {94a:35072}, language = {fr}, url = {https://proceedings.centre-mersenne.org/item/JEDP_1992____A13_0/} }