@incollection{JEDP_1982____A5_0,
     author = {Parenti, Cesare},
     title = {Propagation des singularit\'es $C^\infty $ pour des op\'erateurs fuchsiens},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {5},
     pages = {1--9},
     publisher = {Ecole polytechnique},
     year = {1982},
     mrnumber = {83j:35011},
     zbl = {0496.35081},
     language = {fr},
     url = {http://www.numdam.org/item/JEDP_1982____A5_0/}
}