RT Journal Article SR Electronic(1) A1 Soestwohner, B. A1 Pottecher, G.YR 1992 T1 Calibration of ground penetrating radar antennas JF , VO OP SP cp-45-00121 DO https://doi.org/10.3997/2214-4609.201410459 PB European Association of Geoscientists & Engineers, SN 2214-4609, AB , UL https://www.earthdoc.org/content/papers/10.3997/2214-4609.201410459