Garde, A.A, and T.C.R Pulvertaft. “Age Relations of the Precambrian Mârmorilik Marble Formation, Central West Greenland”. Rapport Grønlands Geologiske Undersøgelse 80 (December 31, 1976): 49–53. Accessed July 3, 2024. https://geusjournals.org/index.php/rapggu/article/view/7483.