SECHER, Karsten. Dansk Polarcenter. Varv, [S. l.], v. 1990, n. 1, p. 23–25, 1990. DOI: 10.7146/varv.v1990i1.144599. Disponível em: https://tidsskrift.dk/varv/article/view/144599. Acesso em: 6 dec. 2025.