Semenov, E. I., H. Sørensen, and Z. T. Katajeva. “2. On the Mineralogy of Pyrochlore from the Ilímaussaq Alkaline Intrusion, South Greenland”. Meddelelser om Grønland 181, no. 7 (June 13, 1968): 9–27. Accessed December 28, 2025. https://tidsskrift.dk/meddrgroenland/article/view/153075.