Jessen C, Henriksen PS, Hald MM, Ulriksen J. The lost landscape of Borgring: Geoarchaeological investigations into the navigation to, and location of, the Danish Viking Age ring fortress. DJA [Internet]. 2021 Jul. 22 [cited 2024 Nov. 22];10:1-14. Available from: https://tidsskrift.dk/dja/article/view/121917