Svensson, Sören, and Thomas Andersson. “Population Trends of Birds in Alpine Habitats at Ammarnäs in Southern Swedish Lapland 1972—2011”. Ornis Svecica 23, no. 2 (April 1, 2013): 81–107. Accessed April 26, 2024. https://journals.lub.lu.se/os/article/view/22578.