Turney, Laurence, and Douglas C. Heard. “The use of satellite images to estimate snow depth and distribution on the forested winter range of the Beverly caribou herd”. Rangifer 11, no. 4 (October 1, 1991): 164–166. Accessed April 26, 2024. https://septentrio.uit.no/index.php/rangifer/article/view/1011.