@incollection{JEDP_1989____A12_0,
     author = {Unterberger, Andr\'e},
     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},
     mrnumber = {91a:58181},
     zbl = {0688.35109},
     language = {fr},
     url = {http://archive.numdam.org/item/JEDP_1989____A12_0/}
}