@incollection{AST_2008__319__13_0,
     author = {Berger, Laurent},
     title = {\'Equations diff\'erentielles $p$-adiques et $(\varphi, N)$-modules filtr\'es},
     booktitle = {Repr\'esentations $p$-adiques de groupes $p$-adiques I : repr\'esentations galoisiennes et $(\varphi, \Gamma)$-modules},
     editor = {Berger Laurent and Breuil Christophe and Colmez Pierre},
     series = {Ast\'erisque},
     pages = {13--38},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {319},
     year = {2008},
     mrnumber = {2493215},
     zbl = {1168.11019},
     language = {fr},
     url = {http://archive.numdam.org/item/AST_2008__319__13_0/}
}