Steenfelt, A, and T Tukiainen. “Geochemical Mapping: Distribution of Gold, Arsenic, Antimony and Tantalum in South Greenland”. Rapport Grønlands Geologiske Undersøgelse 152 (January 1, 1991): 55–61. Accessed May 18, 2024. https://geusjournals.org/index.php/rapggu/article/view/8156.