Geoelectrical characterization using joint inversion of VES/TEM data: a case study in Paraná Sedimentary Basin, São Paulo State, Brazil - Bortolozo, Cassiano Antonio; Couto Junior, Marco Antonio; Porsani, Jorge Luís; Almeida, Emerson Rodrigo; Monteiro Santos, Fernando Acácio (Journal of Applied Geophysics, 2014)