@incollection{SB_1984-1985__27__209_0,
     author = {Lebeau, Gilles},
     title = {Interaction des singularit\'es pour les \'equations aux d\'eriv\'ees partielles non lin\'eaires},
     booktitle = {S\'eminaire Bourbaki : volume 1984/85, expos\'es 633-650},
     series = {Ast\'erisque},
     note = {talk:642},
     pages = {209--222},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {133-134},
     year = {1986},
     mrnumber = {837221},
     zbl = {0625.35059},
     language = {fr},
     url = {http://www.numdam.org/item/SB_1984-1985__27__209_0/}
}