ZWEIFEL, Hans. Geologie und Petrographie von Nathorsts Land (NE-Grönland). Meddelelser om Grønland, [S. l.], v. 160, n. 3, p. 1–94, 1958. Disponível em: https://tidsskrift.dk/meddrgroenland/article/view/161279. Acesso em: 29 dec. 2025.