Eronen, Matti. “The Retreat of Pine Forest in Finnish Lapland since the Holocene Climatic Optimum: A General Discussion With Radiocarbon Evidence from Subfossil Pines”. Fennia - International Journal of Geography 157, no. 2 (February 1, 1979): 93–114. Accessed May 15, 2024. https://fennia.journal.fi/article/view/9166.