Granquist, Sandra Magdalena. “The Icelandic harbour seal (Phoca vitulina) population: trends over 40 years (1980–2020) and current threats to the population”. NAMMCO Scientific Publications 12 (December 20, 2022). Accessed January 8, 2025. https://new.eludamos.org/index.php/NAMMCOSP/article/view/6328.