F. W. Simon, P. A. R. Reginato, R. E. Kirchheim, and G. C. Troian, “Estimation of recharge of the Guarani Aquifer system based on the application of the water-table fluctuation method in the Ibicui River-RS”, R. Águas Subter., vol. 31, no. 2, pp. 12–29, Mar. 2017.