%0 Journal Article
%A Reinhard Schultz
%T Differentiable Group Actions on Homotopy Spheres. I. Differential Structure and the Knot Invariant.
%J Inventiones mathematicae
%D 1976
%P 105-128
%V 31
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM_1976__31_142357/
%F IM_1976__31_142357