TI - Characterization GPR and FDTD modeling of asphaltic sandstones of the Paraná Basin, Brasil: preliminary results PY - 2015 AU - Bertolla, L AU - Porsani, Jorge Luís AU - Elis, Vagner Roberto T2 - European Meeting of Environmental and Engineering Geophysics J2 - Near Surface Geoscience 2015 PP - Houten PB - European Association of Geoscientists and Engineers ER -