@incollection{JEDP_1977____59_0, author = {Croc, \'Elisabeth and Dermenjian, Yves and Iftimie, Viorel}, title = {Une classe d'op\'erateurs pseudo-diff\'erentiels partiellement hypoelliptique-analytiques}, booktitle = {}, series = {Journ\'ees \'equations aux d\'eriv\'ees partielles}, pages = {59--65}, publisher = {Ecole polytechnique}, year = {1977}, language = {fr}, url = {http://archive.numdam.org/item/JEDP_1977____59_0/} }