CRONIN, Michelle A. The status of the harbour seal (Phoca vitulina) in Ireland. NAMMCO Scientific Publications, Tromsø, Norway, v. 8, p. 129–142, 2010. DOI: 10.7557/3.2680. Disponível em: https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2680. Acesso em: 2 may. 2026.