1. Mayr E. (1963)Animal Species and Evolution, Belknap Press, Cambridge MA.
2. Dobzhansky T. (1970)Genetics of the Evolutionary Process. Columbia University Press, NY.
3. Coyne JA, Orr HA. (2004)Speciation. Sinauer, Sunderland MA.
4. STUDIES ON HYBRID STERILITY. II. LOCALIZATION OF STERILITY FACTORS IN DROSOPHILA PSEUDOOBSCURA HYBRIDS
5. Bateson W. Heredity and variation in modern light, pp 85-101 inDarwin and Modern Science, ed. Seward AC, Cambridge University Press. Cambridge MA.