Lambert, R.St.J, and J.G Simons. “New K/Ar Age Determinations from Southern West Greenland”. Rapport Grønlands Geologiske Undersøgelse 19 (January 1, 1969): 68–71. Accessed July 3, 2024. https://geusjournals.org/index.php/rapggu/article/view/7208.