1. D. L. Hartl , A. G. Clark ,Principles of Population Genetics, 4th ed., Sinauer, Sunderland, MA (2007), p. 652.
2. Genetic Structure of Human Populations
3. Invasion and the evolution of speed in toads
4. T. M. Liggett ,Interacting Particle Systems, Springer, New York (2005), p. 496.