@article{MS2_1988__62_2_167024,
     author = {Sinan Sert\"oz},
     title = {C*-actions on {Grassmann} bundles and the cycle at infinity.},
     journal = {Mathematica Scandinavica},
     pages = {5--18},
     publisher = {mathdoc},
     volume = {62},
     number = {2},
     year = {1988},
     zbl = {0638.32028},
     url = {http://geodesic.mathdoc.fr/item/MS2_1988__62_2_167024/}
}