Baumann, Luiza, Marcia Librelotto, Cristiane Pappis, Ronaldo Bastos dos Santos, Roberta Oliveira Santos, Gilson Augusto Helfer, Eduardo Alexis Lobo, and Adilson Ben da Costa. 2019. “Use of the PhotoMetrix App in the Monitoring of Fluoride Concentration in Alternative Water Supply Systems”. Águas Subterrâneas 33 (2). https://doi.org/10.14295/ras.v33i2.29539.