@incollection{SB_1977-1978__20__290_0,
     author = {Ramis, Jean-Pierre},
     title = {Frobenius avec singularit\'es},
     booktitle = {S\'eminaire Bourbaki : vol. 1977/78, expos\'es 507-524},
     series = {S\'eminaire Bourbaki},
     note = {talk:523},
     pages = {290--299},
     publisher = {Springer-Verlag},
     number = {20},
     year = {1979},
     mrnumber = {554228},
     zbl = {0409.58002},
     language = {fr},
     url = {http://archive.numdam.org/item/SB_1977-1978__20__290_0/}
}