@article{JEDP_1982____A12_0,
     author = {Matsuzawa, Tadato},
     title = {Op\'erateurs pseudo-diff\'erentiels et classes de {Gevrey}},
     journal = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {12},
     pages = {1--6},
     publisher = {Ecole polytechnique},
     year = {1982},
     zbl = {0489.35081},
     language = {fr},
     url = {http://www.numdam.org/item/JEDP_1982____A12_0/}
}