1. Aktipis, C. Athena . 2004. Know When to Walk Away: Contingent Movement and the Evolution of Cooperation. Journal of Theoretical Biology, 231: 249–260.
2. Axelrod, Robert . 1984. The Evolution of Cooperation. New York: Basic Books.
3. Clark, William.A.V., and Valerie Ledwith . 2005. Mobility, Housing Stress and Neighborhood Contexts: Evidence from Los Angeles, California Center for Population Research Working Paper, CCPR–005-005.
4. Cutler, David M., and Edward L. Glaeser . 1997. Are Ghettos Good or Bad? Quarterly Journal of Economics, 112 (3): 827–872.
5. Dokumaci, Emin, and William H. Sandholm . 2006. Schelling Redux: An Evolutionary Dynamic Model of Segregation, University of Wisconsin Working Paper.