RT Journal Article SR Electronic(1) A1 Lasse By, Tore A1 Kong, Fan-Nian A1 Westerdahl, HaraldYR 1992 T1 Geo-radar development at the Norwegian Geotechnical Institute (NGI) JF , VO OP SP cp-303-00003 DO https://doi.org/10.3997/2214-4609-pdb.303.3 PB European Association of Geoscientists & Engineers, SN 2214-4609, AB , UL https://www.earthdoc.org/content/papers/10.3997/2214-4609-pdb.303.3