- "Horse coat color tests" 页面存档备份，存于互联网档案馆 from the UC Davis Veterinary Genetics Lab
- "Introduction to Coat Color Genetics" from Veterinary Genetics Laboratory, School of Veterinary Medicine, University of California, Davis. Web Site accessed January 12, 2008.
-  "Morphology" from the Cavallo Murgese Della Masseria. Website accessed May 28, 2008.