Sandrin, A., Maricak, A., Heincke, B. H. ., Clausen, R. J. ., Nielsen, L. . and Keiding, J. K. . (2020) “Geophysics for urban mining and the first surveys in Denmark: rationale, field activity and preliminary results”, GEUS Bulletin. Copenhagen, Denmark, 44. doi: 10.34194/geusb.v44.5240.