POULSEN, Christian; WIENBERG-RASMUSSEN, H. Geological map (scale, 1:50,000) and description of Ella Ø. Meddelelser om Grønland, [S. l.], v. 151, n. 5, p. 1–25, 1951. Disponível em: https://tidsskrift.dk/meddrgroenland/article/view/164670. Acesso em: 8 feb. 2026.