@incollection{JEDP_1975____311_0,
     author = {Jacques Rolland},
     title = {Th\'eor\`eme d'indice pour une classe d'op\'erateurs elliptiques fortement d\'eg\'en\'er\'es sur la fronti\`ere},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     pages = {311--340},
     publisher = {\'Ecole polytechnique},
     year = {1975},
     mrnumber = {58 #11888},
     language = {fr},
     url = {https://proceedings.centre-mersenne.org/item/JEDP_1975____311_0/}
}