G. Hernández-Silva, L. Flores-Delgadillo, M. Maples- Vermeersch, J. G. Solorio-Munguía, and J. R. Alcalá-Martínez, “Risk of Cd, Pb, Cr and Co accumulation in three soil series of the DR03, State of Hidalgo, Mexico”, revmexcg, vol. 11, no. 1, pp. 53–61, Feb. 2019.