@article{SEDP_1977-1978____A4_0,
     author = {Tr\'epreau, J. M.},
     title = {Probl\`eme de {Cauchy} hyperbolique non strict dans des classes d'ultradistributions},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"},
     note = {talk:3},
     pages = {1--14},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1977-1978},
     zbl = {0383.35045},
     language = {fr},
     url = {http://archive.numdam.org/item/SEDP_1977-1978____A4_0/}
}