Hernández-Silva, G.; Flores-Delgadillo, L.; Maples- Vermeersch, M.; Solorio-Munguía, J. G.; Alcalá-Martínez, J. R. Risk of Cd, Pb, Cr and Co Accumulation in Three Soil Series of the DR03, State of Hidalgo, Mexico. revmexcg 2019, 11, 53-61.