1. Birkhoff, G., and S. Maclane (1963): A Survey of Modern Algebra. New York: MacMillan.
2. Chvátal, V. (1983): Linear Programming. New York: Freeman.
3. Derks J., H. Haller and H. Peters (2000): “The selectope for cooperative games,” International Journal of Game Theory, 29, 23–38.
4. Edmonds, J. (1970): “Submodular functions, matroids, and certain polyhedra,” in: Richard Guy et al., (eds.), Combinatorial Structures and their Applications. Gordon and Breach, 69–87.
5. Freudenthal, H. (1942): “Simplizialzerlegungen von Beschränkter Flachheit,” Annals of Mathematics, 43, 580–582.