Sakshaug Egil, and Slagstad Dag. “Light and Productivity of Phytoplankton in Polar Marine Ecosystems: A Physiological View”. Polar Research 10, no. 1 (January 9, 1991): 69-86. Accessed July 16, 2024. https://polarresearch.net/index.php/polar/article/view/2300.