@article{PORMA_1982__41_1-4_115485,
     author = {Laubin, P.},
     title = {Propagation des singularit\'es analytiques pour des op\'erateurs a caracteristiques involutives de multiplicit\'e variable},
     journal = {Portugaliae mathematica},
     pages = {83--90},
     publisher = {mathdoc},
     volume = {41},
     number = {1-4},
     year = {1982},
     mrnumber = {0766841},
     zbl = {0551.58034},
     language = {fr},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1982__41_1-4_115485/}
}