@article{JEDP_1979____A1_0,
     author = {Bony, Jean-Michel},
     title = {Calcul symbolique et singularit\'es des solutions des \'equations aux d\'eriv\'ees partielles non lin\'eaires},
     journal = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {1},
     pages = {1--7},
     publisher = {Ecole polytechnique},
     year = {1979},
     mrnumber = {80i:35046},
     zbl = {0499.35031},
     language = {fr},
     url = {http://archive.numdam.org/item/JEDP_1979____A1_0/}
}