@article{JEDP_1975____3_0,
     author = {Alinhac, Serge},
     title = {Param\'etrix et propagation des singularit\'es pour un probl\`eme de {Cauchy} \`a multiplicit\'e variable},
     journal = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     pages = {3--26},
     publisher = {Ecole polytechnique},
     year = {1975},
     mrnumber = {58 #6719},
     language = {fr},
     url = {http://www.numdam.org/item/JEDP_1975____3_0/}
}