Miquelle, D. G., and V. Van Ballenberghe. “THE MOOSE BELL: A VISUAL OR OLFACTORY COMMUNICATOR”. Alces: A Journal Devoted to the Biology and Management of Moose, vol. 21, Jan. 1985, pp. 191-13, https://www.alcesjournal.org/index.php/alces/article/view/1399.