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Benirschke, Poliakoff K.; N. Malouf; R. J. Low; H. Heck (16 April 1965). "Chromosome Complement: Differences between Equus caballus and Equus przewalskii". Science. 148 (3668): 382–383. doi:10.1126/science.148.3668.382. PMID14261533. S2CID21562513.
Usukhjargal, Dorj; Henkens, RenéJ H. G.; Boer, Willem F. de; et al. (28 August 2009). "Wolf Predation Among Reintroduced Przewalski Horses in Hustai National Park, Mongolia". Journal of Wildlife Management. 73 (6): 836–843. doi:10.2193/2008-027. S2CID85877321.
Benirschke, Poliakoff K.; N. Malouf; R. J. Low; H. Heck (16 April 1965). "Chromosome Complement: Differences between Equus caballus and Equus przewalskii". Science. 148 (3668): 382–383. doi:10.1126/science.148.3668.382. PMID14261533. S2CID21562513.
Boeskorov, Gennady G.; Potapova, Olga R.; Protopopov, Albert V.; et al. (July 2018). "A study of a frozen mummy of a wild horse from the Holocene of Yakutia, east Siberia, Russia". Mammal Research. 63 (3): 307–314. doi:10.1007/s13364-018-0362-4. ISSN2199-241X.
