%0 Journal Article
%A Walter D. Neumann
%T The fixed group of an automorphism of a word hyperbolic group is rational.
%J Inventiones mathematicae
%D 1992
%P 147-150
%V 110
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM_1992__110_2_144046/
%F IM_1992__110_2_144046