%0 Journal Article %A Reinhard Schultz %A Slawomir Kwasik %T Isolated fixed points of circle actions on 4-manifolds. %J Forum mathematicum %D 1997 %P 517-546 %V 9 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/FORUM_1997__9_2_141810/ %F FORUM_1997__9_2_141810