Binotto, R. B., Teixeira, E. C., Costa, A. F. U., & Nanni, A. S. (2001). Use of the geophysical method EM 34-3 in the study of groundwater contamination by coal waste and ashes. Ciência E Natura, 23(23), 35–58. https://doi.org/10.5902/2179460X27122