Knudsen, C, P.W.U Appel, B Hageskov, and L Skjernaa. “Geological Reconnaissance in the Precambrian Basement of the Atâ Area, Central West Greenland”. Rapport Grønlands Geologiske Undersøgelse 140 (December 31, 1988): 9–17. Accessed July 3, 2024. https://geusjournals.org/index.php/rapggu/article/view/8024.