JOHNSTRUP, F. 9. Rèsumè des Communications sur le Grønland. Deuxième Partie. Meddelelser om Grønland, [S. l.], v. 2, p. 221–247, 1881. DOI: 10.7146/mog.v2.139515. Disponível em: https://tidsskrift.dk/meddrgroenland/article/view/139515. Acesso em: 7 dec. 2025.