WITTING, Lars; BORN, Erik. Population dynamics of walruses in Greenland. NAMMCO Scientific Publications, Tromsø, Norway, v. 9, p. 191–218, 2014. DOI: 10.7557/3.2612. Disponível em: https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2612. Acesso em: 4 may. 2026.