@article{SEDP_1979-1980____A13_0, author = {Baouendi, M. S. and M\'etivier, G.}, title = {Vecteurs analytiques d'op\'erateurs hypoelliptiques et de type principal}, journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"}, note = {talk:12}, publisher = {Ecole Polytechnique, Centre de Math\'ematiques}, year = {1979-1980}, zbl = {0447.35024}, language = {fr}, url = {http://archive.numdam.org/item/SEDP_1979-1980____A13_0/} }