Olson, L.E., V. Yovovich, and D.T. Blumstein. “Early Season Arboreal Behaviour in Yellow-Bellied Marmots (Marmota Flaviventris)”. Oecologia Montana 12, no. 1-2 (December 1, 2003): 12-14. Accessed November 1, 2020. https://om.vuvb.uniza.sk/index.php/OM/article/view/162.