1. Avis, D., Diameter Partitioning,Discrete and Computational Geometry, Vol. 1, pp. 265–276, 1986.
2. Technical Report;D. Avis,1987
3. Avis, D. and Wenger, R., Algorithms for Line Stabbers in Space,Proceedings of the 3rd ACM Conference on Computational Geometry, pp. 300–307, Waterloo, 1987.
4. Borsuk, K.,Multidimensional Analytic Geometry, Polish Scientific Publishers, Warsaw, 1969.
5. Danzer, L., Grunbaum, B., and Klee, V.,Helly's Theorem and Its Relatives, Proceedings of Symposia in Pure Mathematics, pp. 100–181, American Mathematical Society, Providence, RI, 1963.