@article{SEDP_1978-1979____A17_0,
     author = {Wagschal, C.},
     title = {Le probl\`eme de {Goursat} non-lin\'eaire},
     journal = {S\'eminaire Goulaouic-Schwartz},
     note = {talk:17},
     pages = {1--11},
     year = {1978-1979},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     zbl = {0404.35074},
     language = {fr},
     url = {https://www.numdam.org/item/SEDP_1978-1979____A17_0/}
}