RAMBERG, Hans. On sapphirine-bearing rocks in the vicinity of Sukkertoppen (West Greenland). Meddelelser om Grønland, [S. l.], v. 142, n. 5, p. 32 pp., 1948. Disponível em: https://tidsskrift.dk/meddrgroenland/article/view/166383. Acesso em: 10 apr. 2026.