%0 Journal Article %A Zdzislaw Wojtkowiak %T Free actions of finite groups on finite CW complexes. %J Commentarii mathematici Helvetici %D 1980 %P 225-232 %V 55 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1980__55_139822/ %F CMH_1980__55_139822