Stempniewicz, Lech. “Marine Birds Drowning in Fishing Nets in the Gulf of Gdańsk (southern Baltic): Numbers, Species Composition, Age and Sex Structure”. Ornis Svecica 4, no. 2–3 (July 1, 1994): 123–132. Accessed October 1, 2022. https://journals.lub.lu.se/os/article/view/23026.