Bond, Jason E. & Amy K. Stockman (2008). "An Integrative Method for Delimiting Cohesion Species: Finding the Population-Species Interface in a Group of Californian Trapdoor Spiders with Extreme Genetic Divergence and Geographic Structuring". Systematic Biology. 57 (4): 628–646. doi:10.1080/10635150802302443. PMID18686196.
Bond, Jason E. & Amy K. Stockman (2008). "An Integrative Method for Delimiting Cohesion Species: Finding the Population-Species Interface in a Group of Californian Trapdoor Spiders with Extreme Genetic Divergence and Geographic Structuring". Systematic Biology. 57 (4): 628–646. doi:10.1080/10635150802302443. PMID18686196.