Orpin, Colin G., and Svein Disch Mathiesen. “Microbiology of digestion in the Svalbard reindeer (Rangifer tarandus platyrhynchus)”. Rangifer 10, no. 3 (September 1, 1990): 187–199. Accessed June 7, 2025. https://new.eludamos.org/index.php/rangifer/article/view/855.