Semenov, E.I, M.E Kazakova, and R.A Aleksandrova. “The Lovozero Minerals - Nenadkevichite, Gerassimovskite and Tundrite - from Ilímaussaq, South Greenland”. Bulletin Grønlands Geologiske Undersøgelse 68 (October 31, 1967): 1–11. Accessed July 3, 2024. https://geusjournals.org/index.php/bullggu/article/view/6605.