Lockyer, C, M P Heide-Jørgensen, J Jensen, and M J Walton. “Life history and ecology of harbour porpoises (<i>Phocoena phocoena</i>) from West Greenland”. NAMMCO Scientific Publications 5 (July 1, 2003): 177–194. Accessed January 8, 2025. https://new.eludamos.org/index.php/NAMMCOSP/article/view/2746.