HANSEN, John. A Study of Radioactive Veins containing rare-Earth Minerals in the Area surrounding the Ilímaussaq Alkaline Intrusion in South Greenland. Meddelelser om Grønland, [S. l.], v. 181, n. 8, p. 51 pp., 1968. Disponível em: https://tidsskrift.dk/meddrgroenland/article/view/153077. Acesso em: 28 dec. 2025.