@incollection{AST_1982__95__167_0,
     author = {Lascar, Bernard and Sj\"ostrand, Johannes},
     title = {\'Equation  de {Schr\"odinger} et  propagation  des singularit\'es  pour des  op\'erateurs  pseudo-diff\'erentiels \`a  caract\'eristiques  r\'eelles de  multiplicit\'e  variable},
     booktitle = {Singularit\'es analytiques microlocales - \'equation de Schr\"odinger et propagation des singularit\'es...},
     series = {Ast\'erisque},
     pages = {167--207},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {95},
     year = {1982},
     mrnumber = {699624},
     zbl = {0529.58033},
     language = {fr},
     url = {http://archive.numdam.org/item/AST_1982__95__167_0/}
}