Hauksson, Erlingur. “Monitoring trends in the abundance of harbour seals (<i>Phoca vitulina</i>) in Icelandic waters”. NAMMCO Scientific Publications 8 (September 1, 2010): 227–244. Accessed April 19, 2025. https://new.eludamos.org/index.php/NAMMCOSP/article/view/2687.