Schwartz, C. C., A. B. Bubenik, and R. Claus. “ARE SEX-PHEROMONES INVOLVED IN MOOSE BREEDING BEHAVIOR”. Alces: A Journal Devoted to the Biology and Management of Moose, vol. 26, Jan. 1990, pp. 104-7, https://alcesjournal.org/index.php/alces/article/view/1161.