Lyras G.A., Van der Geer A.E., Dermitzakis M., De Vos J. (2006). «Cynotherium sardous, an insular canid (Mammalia: Carnivora) from the Pleistocene of Sardinia (Italy), and its origin». Journal of Vertebrate Paleontology26 (3): 735-745. doi:10.1671/0272-4634(2006)26[735:CSAICM]2.0.CO;2.
Gippoliti, Spartaco & Amori, Giovanni (2006). «Ancient introductions of mammals in the Mediterranean Basin and their implications for conservation». Mammal Review36 (1): 37-48. doi:10.1111/j.1365-2907.2006.00081.x.