%0 Journal Article %A Mladen Bestvina %A Mark Feighn %A Michael Handel %T The Tits alternative for Out$(F_n)$. I: Dynamics of exponentially-growing automorphisms %J Annals of mathematics %D 2000 %V 151 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM_2000_151_2_a3/ %F AM_2000_151_2_a3