HEIDE-JØRGENSEN, Mads Peter; WIIG, Øystein. Introduction. NAMMCO Scientific Publications, Tromsø, Norway, v. 4, p. 9–15, 2002. DOI: 10.7557/3.2834. Disponível em: https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2834. Acesso em: 21 apr. 2026.