Maria C. Hernandez-Soriano Hernandez-Soriano, M. C., & Jimenez-Lopez, J. C. (2012). Effects of soil water content and organic matter addition on the speciation and bioavailability of heavy metals. SCIENCE OF THE TOTAL ENVIRONMENT, 423, 55–61. https://doi.org/10.1016/j.scitotenv.2012.02.033