StevensonSusan K., and CoxsonDarwyn S. “Arboreal Forage Lichens in Partial Cuts – a Synthesis of Research Results from British Columbia, Canada”. Rangifer 27, no. 4 (April 1, 2007): 155-165. Accessed August 15, 2020. https://septentrio.uit.no/index.php/rangifer/article/view/342.