Valkenburg, Patrick, KelleyhouseDavid G., DavisJames L., and Ver HoefJay M. “Case History of the Fortymile Caribou Herd, 1920-1990”. Rangifer 14, no. 1 (December 1, 1994): 11-22,46. Accessed December 15, 2019. https://septentrio.uit.no/index.php/rangifer/article/view/1128.