Timisjärvi, Jouni, Mauri Nieminen, and Sven Nikander. “Characteristics of the Reindeer Electrocardiogram”. Rangifer 2, no. 2 (May 1, 1982): 36–40. Accessed August 6, 2026. https://septentrio.uit.no/index.php/rangifer/article/view/412.