PÉREZ, Fernando. natural spring waters. Geographicalia, [S. l.], n. 37, p. 147–155, 2016. DOI: 10.26754/ojs_geoph/geoph.1999371406. Disponível em: https://papiro.unizar.es/ojs/index.php/geographicalia/article/view/1406. Acesso em: 5 dec. 2025.