%0 Journal Article %A Reinhard Schultz %A S. Kwasik %T Positive scalar curvature and periodic fundamental groups. %J Commentarii mathematici Helvetici %D 1990 %P 271-286 %V 65 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1990__65_3_140195/ %F CMH_1990__65_3_140195