@incollection{JEDP_1982____A22_0, author = {Trepeau, Jean-Marie}, title = {Sur la r\'esolubilit\'e microlocale des op\'erateurs de type principal}, booktitle = {}, series = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, eid = {22}, pages = {1--10}, publisher = {\'Ecole polytechnique}, year = {1982}, zbl = {0489.35082}, mrnumber = {672289}, language = {fr}, url = {http://geodesic.mathdoc.fr/item/JEDP_1982____A22_0/} }