GUNNLAUGSSON, Thorvaldur; VÍKINGSSON, Gisli A; PIKE, Daniel G. Combined line-transect and cue-count estimate of sperm whale abundance in the North Atlantic, from Icelandic NASS-2001 shipboard survey. NAMMCO Scientific Publications, Tromsø, Norway, v. 7, p. 73–80, 2009. DOI: 10.7557/3.2706. Disponível em: https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2706. Acesso em: 19 may. 2026.