@article{MAN_1983__265_163808,
     author = {Douglas R. Anderson and Erik K. Pedersen},
     title = {Semifree {Topological} {Actions} of {Finite} {Groups} on {Spheres.}},
     journal = {Mathematische Annalen},
     pages = {23--44},
     publisher = {mathdoc},
     volume = {265},
     year = {1983},
     zbl = {0496.57016},
     url = {http://geodesic.mathdoc.fr/item/MAN_1983__265_163808/}
}