%0 Journal Article %A Sinan Sertöz %T C*-actions on Grassmann bundles and the cycle at infinity. %J Mathematica Scandinavica %D 1988 %P 5-18 %V 62 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MS2_1988__62_2_167024/ %F MS2_1988__62_2_167024