Christensen, J., A. Daly, P. S. Henriksen, N. Holm, C. Jessen, S. Jørgensen, L. Olesen, J. Olsen, M. K. Schultz, S. M. Sindbæk, and J. Ulriksen. “Borgring. Uncovering the Strategy for a Viking Age Ring Fortress in Denmark”. Danish Journal of Archaeology, vol. 10, July 2021, pp. 1-22, doi:10.7146/dja.v10i0.121920.