Ballard, W. B., and V. Van Ballenberghe. “MOOSE-PREDATOR RELATIONSHIPS: RESEARCH AND MANAGEMENT NEEDS”. Alces: A Journal Devoted to the Biology and Management of Moose, vol. 34, no. 1, Jan. 1998, pp. 91-105, https://www.alcesjournal.org/index.php/alces/article/view/715.