Saperstein, L. B., and D. R. Klein. “Characteristics of caribou feeding craters in burned and unburned habitat on the Selawik flats, Alaska”. Rangifer 12, no. 3 (October 1, 1992): 169–170. Accessed April 26, 2024. https://septentrio.uit.no/index.php/rangifer/article/view/1036.