@article{SEDP_1973-1974____A20_0,
     author = {Bony, J. M. and Schapira, P.},
     title = {Propagation des singularit\'es analytiques pour les solutions des \'equations aux d\'eriv\'ees partielles},
     journal = {S\'eminaire \'Equations aux d\'eriv\'ees partielles (Polytechnique) dit aussi "S\'eminaire Goulaouic-Schwartz"},
     note = {talk:21 et 22},
     pages = {1--13},
     publisher = {Ecole Polytechnique, Centre de Math\'ematiques},
     year = {1973-1974},
     mrnumber = {494323},
     zbl = {0301.35083},
     language = {fr},
     url = {http://www.numdam.org/item/SEDP_1973-1974____A20_0/}
}