JOHANSEN, Kasper Lambert; LAURSEN, Steffen Terp. Gravhøje set fra luften. Kuml, [S. l.], v. 56, n. 56, p. 47–72, 2007. DOI: 10.7146/kuml.v56i56.24677. Disponível em: https://tidsskrift.dk/kuml/article/view/24677. Acesso em: 6 dec. 2025.