Choudhury, A R, et al. “Comparative Gross Anatomical Studies on the Atlas of Chiru (Pantholops Hodgsoni) and Sheep (Ovis Aries)”. Indian Journal of Veterinary Anatomy, vol. 24, no. 2, Feb. 2013, https://epubs.icar.org.in/index.php/IJVA/article/view/27084.