%0 Journal Article %A Laubie, François %T Ramification des séries formelles %J Canadian mathematical bulletin %D 2004 %P 237-245 %V 47 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-2004-023-6/ %R 10.4153/CMB-2004-023-6 %F 10_4153_CMB_2004_023_6