Königson, Sara, Arne Fjälling, and Sven-Gunnar Lunneryd. “Grey seal induced catch losses in the herring gillnet fisheries in the northern Baltic”. NAMMCO Scientific Publications 6 (January 1, 2007): 203–213. Accessed January 8, 2025. https://new.eludamos.org/index.php/NAMMCOSP/article/view/2735.