Souza, K. I. S. de, Chaffe, P. L. B., Pinto, C. R. S. de C., & Nogueira, T. M. P. (2019). Environmental protection of springs and groundwater outcrops in Brazil: history and current technical gaps. Águas Subterrâneas, 33(1), 76–86. https://doi.org/10.14295/ras.v33i1.29254