Nilssen, Kjell T, Ole-Petter Pedersen, Lars P Folkow, and Tore Haug. “Food consumption estimates of Barents Sea harp seals”. NAMMCO Scientific Publications 2 (May 25, 2004): 9–27. Accessed April 20, 2024. https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2968.