Generalized Breadths, Circular Cantor Sets, and the Least Area UCC . Gy. Elekes (1994) Discrete & computational geometry
Generalized Delaunay Triangulation for Planar Graphs. D.T. Lee, A.K. Lin (1986) Discrete & computational geometry
Geometric Permutations and Common Transversals. M. Katchalski, T. Lewis, A. Liu (1986) Discrete & computational geometry