%0 Journal Article %A Andrieux, P. %A Martire, O. %A Frobert, L. %T Synthetic DC Focusing Arrays in Drill Holes-Detection of Cavities and Fractures %D 1997 %J , %V %@ 2214-4609 %C cp-131-00357 %R https://doi.org/10.3997/2214-4609-pdb.131.GEN1997_P151 %I European Association of Geoscientists & Engineers, %X %U https://www.earthdoc.org/content/papers/10.3997/2214-4609-pdb.131.GEN1997_P151