@incollection{JEDP_1979____A7_0,
     author = {Omar Debbaj and Ali Souissi},
     title = {Probl\`eme \`a d\'eriv\'ee oblique associ\'e \`a des op\'erateurs elliptiques singuliers},
     booktitle = {},
     series = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {7},
     pages = {1--7},
     publisher = {\'Ecole polytechnique},
     year = {1979},
     zbl = {0405.35036},
     mrnumber = {81i:35033},
     language = {fr},
     url = {https://proceedings.centre-mersenne.org/item/JEDP_1979____A7_0/}
}