%0 Journal Article %A S. Boyer %A X. Zhang %T On Culler-Shalen seminorms and Dehn filling %J Annals of mathematics %D 1998 %V 148 %N 3 %U http://geodesic.mathdoc.fr/articles/10.2307/121031/ %R 10.2307/121031 %F 10_2307_121031