@article{SEDP_1971-1972____A2_0,
     author = {Hanouzet, B.},
     title = {Caract\'erisation de classes de fonctions $C^\infty $ par des it\`eres d{\textquoteright}op\'erateurs elliptiques d\'eg\'en\'er\'es sur des ouverts irr\'eguliers},
     journal = {S\'eminaire Goulaouic-Schwartz},
     note = {talk:2},
     pages = {1--16},
     year = {1971-1972},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     zbl = {0245.47048},
     language = {fr},
     url = {https://www.numdam.org/item/SEDP_1971-1972____A2_0/}
}