THRANE, Henrik. Danish Plough-Marks from the Neolithic and Bronze Age. Journal of Danish Archaeology, [S. l.], v. 8, p. 111–125, 1989. DOI: 10.1080/0108464X.1989.10590023. Disponível em: https://tidsskrift.dk/jda/article/view/127404. Acesso em: 25 dec. 2025.