KINGSLEY, Michael CS; GAUTHIER, Isabelle. Visibility of St Lawrence belugas to aerial photography, estimated by direct observation. NAMMCO Scientific Publications, Tromsø, Norway, v. 4, p. 259–270, 2002. DOI: 10.7557/3.2848. Disponível em: https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2848. Acesso em: 21 apr. 2026.