Enemar, Anders, Bengt Sjöstrand, Göran Andersson, and Ted von Proschwitz. “The 37-Year Dynamics of a Subalpine Passerine Bird Community, With Special Emphasis on the Influence of Environmental Temperature and Epirrita Autumnata Cycles”. Ornis Svecica 14, no. 3 (July 1, 2004): 63–106. Accessed April 25, 2024. https://journals.lub.lu.se/os/article/view/20236.