Böcher, Tyge W., Kjeld Hansen, and Knud Jakobsen. “A Synoptical Study of the Greenland Flora”. Meddelelser om Grønland 163, no. 1 (April 9, 1959): 1–32. Accessed December 28, 2025. https://tidsskrift.dk/meddrgroenland/article/view/160966.