Jordan, Peter A., Rolf O. Peterson, Patrick Campbell, and Brian McLaren. 1993. “COMPARISON OF PELLET COUNTS AND AERIAL COUNTS FOR ESTIMATING DENSITY OF MOOSE AT ISLE ROYALE: A PROGRESS REPORT”. Alces: A Journal Devoted to the Biology and Management of Moose 29 (January):267-78. https://alcesjournal.org/index.php/alces/article/view/1027.