Fredriksen , Stein, and Maia Røst Kile. “The Algal Vegetation in the Outer Part of Isfjorden, Spitsbergen: Revisiting Per Svendsen’s Sites 50 Years Later”. Polar Research 310 (March 26, 2012). Accessed April 4, 2026. https://polarresearch.net/index.php/polar/article/view/2602.