%0 Journal Article %A Alejandro Adem %T Torsion in equivariant cohomology. %J Commentarii mathematici Helvetici %D 1989 %P 401-411 %V 64 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1989__64_1_140163/ %F CMH_1989__64_1_140163