@incollection{JEDP_1989____A12_0,
     author = {Andr\'e Unterberger},
     title = {Op\'erateurs pseudo-diff\'erentiels et analyse harmonique non commutative},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {12},
     pages = {1--14},
     publisher = {\'Ecole polytechnique},
     year = {1989},
     doi = {10.5802/jedp.373},
     mrnumber = {91a:58181},
     zbl = {0688.35109},
     language = {fr},
     url = {https://proceedings.centre-mersenne.org/articles/10.5802/jedp.373/}
}