Jerry A. Coyne, H. Allen Orr: The evolutionary genetics of speciation. In: Philosophical Transactions of the Royal Society London Series B, Band 353, 28. Februar 1998, S. 287-305; doi:10.1098/rstb.1998.0210, PMID 9533126, PMC 1692208 (freier Volltext).
N. H. Barton, and G. M. Hewitt (1985): Analysis of Hybrid Zones. Annual Review of Ecology and Systematics Vol. 16: 113-148 doi:10.1146/annurev.es.16.110185.000553
John P.Masly (2012): 170 Years of “Lock-and-Key”: Genital Morphology and Reproductive Isolation. International Journal of Evolutionary Biology Volume 2012, Article ID 247352, 10 pages. doi:10.1155/2012/247352
Justin Ramsey, H. D. Bradshaw Jr., Douglas W. Schemske (2003): Components of reproductive isolation between the monkeyflowers Mimulus lewisii and M.cardinalis (Phrymaceae). Evolution 57: 1520–1534. doi:10.1111/j.0014-3820.2003.tb00360.x
Jerry A. Coyne, H. Allen Orr: The evolutionary genetics of speciation. In: Philosophical Transactions of the Royal Society London Series B, Band 353, 28. Februar 1998, S. 287-305; doi:10.1098/rstb.1998.0210, PMID 9533126, PMC 1692208 (freier Volltext).
pearson.com
Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson: Campbell Biology, 9th edition, Pearson 2011, S. 489–491