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 August 24, 2026. https://septentrio.uit.no/index.php/rangifer/article/view/855.