Mazák JH (2012). “Retraction for Christiansen and Mazák, A primitive Late Pliocene cheetah, and evolution of the cheetah lineage”. Proc Natl Acad Sci USA. 109 (37): 15072. doi:10.1073/pnas.1211510109. PMID22908293.
Mazák JH (2012). “Retraction for Christiansen and Mazák, A primitive Late Pliocene cheetah, and evolution of the cheetah lineage”. Proc Natl Acad Sci USA. 109 (37): 15072. doi:10.1073/pnas.1211510109. PMID22908293.