Ziółek , Marta, and Jerzy Melke. “The Impact of Seabirds on the Content of Various Forms of Phosphorus in Organic Soils of the Bellsund Coast, Western Spitsbergen”. Polar Research 330 (October 17, 2014). Accessed March 30, 2026. https://polarresearch.net/index.php/polar/article/view/3161.