The Different Ways of Stabbing Disjoint Convex Sets. M. Katchalski; T. Lewis; A. Liu — 1992 Discrete & computational geometry
Geometric Permutations and Common Transversals. M. Katchalski; T. Lewis; A. Liu — 1986 Discrete & computational geometry
On Short Edges in Straight-Edge Triangulations. N. Alon; M. Katchalski; A. Liu; ... — 1995 Mathematica Scandinavica