Lützen, Jørgen. “7.II The Ascidians of Jørgen Brønlund Fjord, North Greenland”. Meddelelser om Grønland 184, no. 7 (June 30, 1970): 8 pp. Accessed December 28, 2025. https://tidsskrift.dk/meddrgroenland/article/view/152922.