Öberg, Lisa, and Leif Kullman. “Contrasting Short-Term Performance of Mountain Birch (Betula Pubescens Ssp. Czerepanovii) Treeline Along a Latitudinal Continentality-Maritimity Gradient in the Southern Swedish Scandes”. Fennia - International Journal of Geography 190, no. 1 (September 12, 2012): 19–40. Accessed March 29, 2024. https://fennia.journal.fi/article/view/5019.