Avise, John C., Arnold, Jonathan, Ball, R. M., Bermingham, Eldredge, Lamb, Trip, Neigel, Joseph E., Reeb, Carol A., and Saunders, Nancy C. 1987. "Intraspecific Phylogeography: The Mitachomdrial DNA Bridge Between Population Genetics and Sy." Annual Review of Ecology and Systematics, 18 489–522.