Kløve Keiding, J., P. Kalvig, C. Ditlefsen, S. Lomholt, and P. Roll Jakobsen. “Assessment of the Mineral Raw Material Potential in Denmark – Methods and Major Findings”. GEUS Bulletin, vol. 33, July 2015, pp. 37-40, doi:10.34194/geusb.v33.4484.