Breuning-Madsen, H., P. S. Henriksen, J. Ågård Kristensen, M. Jessen, and R. Ekman. “The Hydrology and Preservation Condition in the Flat-Topped Burial Mound: Klangshøj at Vennebjerg in Vendsyssel”. Danish Journal of Archaeology, vol. 5, Nov. 2016, pp. 72-85, doi:10.1080/21662282.2016.1256099.