Hernández-Silva, Gilberto, Lourdes Flores-Delgadillo, Mireya Maples- Vermeersch, José Gregorio Solorio-Munguía, and Jorge René Alcalá-Martínez. 2019. “Risk of Cd, Pb, Cr and Co Accumulation in Three Soil Series of the DR03, State of Hidalgo, Mexico”. Revista Mexicana De Ciencias Geológicas 11 (1):53-61. https://rmcg.unam.mx/index.php/rmcg/article/view/1202.