%0 Journal Article %A W. Hsiang %T On the Geometric Weight System of Differentiable Compact Transformation Groups on Acyclic Manifolds. %J Inventiones mathematicae %D 1971 %P 35-47 %V 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1971__12_142064/ %F IM_1971__12_142064