RESZ (HOAGHIA), Maria-Alexandra, et al. “GROUNDWATER CHEMISTRY RENDERING USING DUROV, PIPER AND ION BALANCE DIAGRAMS. STUDY CASE: THE NORTHERN PART OF SIBIU COUNTY”. Studia Universitatis Babeș-Bolyai Chemia, vol. 60, no. 2, June 2015, pp. 161-8, https://studia.reviste.ubbcluj.ro/index.php/chemia/article/view/8438.