HÄRKÖNEN, Tero; BRASSEUR, Sophie; TEILMANN, Jonas; VINCENT, Cecile; DIETZ, Rune; ABT, Kai; REIJNDERS, Peter. Status of grey seals along mainland Europe from the Southwestern Baltic to France. NAMMCO Scientific Publications, Tromsø, Norway, v. 6, p. 57–68, 2007. DOI: 10.7557/3.2721. Disponível em: https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2721. Acesso em: 3 may. 2026.