@article{DCG_1993__10_2_131271,
     author = {J. Matousek and O. Schwarzkopf},
     title = {On {Ray} {Shooting} in {Convex} {Polytopes.}},
     journal = {Discrete & computational geometry},
     pages = {215--232},
     publisher = {mathdoc},
     volume = {10},
     number = {2},
     year = {1993},
     zbl = {0776.68110},
     url = {http://geodesic.mathdoc.fr/item/DCG_1993__10_2_131271/}
}