Tracking geochemical signatures of rare earth and trace elements in spring waters and outcropping rocks from the hidden geothermal system of Acoculco, Puebla (Mexico). - Santos-Raga, G.; Santoyo, E.; Guevara, M.; Almirudis, E.; Pérez-Zárate, D.; Yáñez-Dávila, D. (Journal of Geochemical Exploration, 2021)