@article{DCG_1995__13_3-4_131346,
     author = {R. Seidel and J. Erickson},
     title = {Better {Lower} {Bounds} on {Detecting} {Affine} and {Spherical} {Degeneracies.}},
     journal = {Discrete & computational geometry},
     pages = {41--58},
     publisher = {mathdoc},
     volume = {13},
     number = {3-4},
     year = {1995},
     zbl = {0815.68115},
     url = {http://geodesic.mathdoc.fr/item/DCG_1995__13_3-4_131346/}
}