David Avis, Kiyoshi Hosono, Masatsugu Urabe. On the Existence of a Point Subset with 4 or 5 Interior Points. In Jin Akiyama, Mikio Kano, Masatsugu Urabe, editors, Discrete and Computational Geometry, Japanese Conference, JCDCG 98, Tokyo, Japan, December 9-12, 1998, Revised Papers. Volume 1763 of Lecture Notes in Computer Science, pages 57-64, Springer, 1998.
Abstract is missing.