%0 Journal Article %A M. Jol, H. %T Comparison of the 25 , 50, 100, 200 MHz antennae with 400 and 1000 V transmitters: a ground penetrating radar field study %D 1992 %J , %V %@ 2214-4609 %C cp-45-00120 %R https://doi.org/10.3997/2214-4609.201410458 %I European Association of Geoscientists & Engineers, %X %U https://www.earthdoc.org/content/papers/10.3997/2214-4609.201410458