Ólafsdóttir, Droplaug, Gísli A Víkingsson, Sverrir Daníel Halldórsson, and Jóhann Sigurjónsson. “Growth and reproduction in harbour porpoises (Phocoena phocoena) in Icelandic waters”. NAMMCO Scientific Publications 5 (July 1, 2003): 195–210. Accessed May 4, 2026. https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2747.