@incollection{SB_1979-1980__22__215_0,
     author = {Bardos, Claude},
     title = {Apparition \'eventuelle de singularit\'es dans des probl\`emes d'\'evolution non lin\'eaires},
     booktitle = {S\'eminaire Bourbaki : vol. 1979/80, expos\'es 543-560},
     series = {S\'eminaire Bourbaki},
     note = {talk:555},
     pages = {215--224},
     publisher = {Springer-Verlag},
     number = {22},
     year = {1981},
     mrnumber = {636525},
     zbl = {0455.35028},
     language = {fr},
     url = {http://www.numdam.org/item/SB_1979-1980__22__215_0/}
}