@article{DCG_1992__7_4_131191,
     author = {M. Katchalski and T. Lewis and A. Liu},
     title = {The {Different} {Ways} of {Stabbing} {Disjoint} {Convex} {Sets.}},
     journal = {Discrete & computational geometry},
     pages = {197--206},
     publisher = {mathdoc},
     volume = {7},
     number = {4},
     year = {1992},
     zbl = {0748.52006},
     url = {http://geodesic.mathdoc.fr/item/DCG_1992__7_4_131191/}
}