CORRALES-PÉREZ, Daniel; MARTÍN-ROMERO, Francisco. Modifications to improve the application of method D3987-85 in the extraction of EPT from the abandoned mine tailings El Fraile, Guerrero, México. Revista Mexicana de Ciencias Geológicas, [S. l.], v. 35, n. 1, p. 1–17, 2018. DOI: 10.22201/cgeo.20072902e.2018.1.536. Disponível em: https://rmcg.geociencias.unam.mx/index.php/rmcg/article/view/536. Acesso em: 4 apr. 2025.