Noe-Nygaard, A, and A.K Pedersen. “Tertiary Volcanic Rocks from Bontekoe Ø, East Greenland”. Rapport Grønlands Geologiske Undersøgelse 116 (December 31, 1983): 1–13. Accessed November 27, 2024. https://geusjournals.org/index.php/rapggu/article/view/7846.