Houben, D., Evrard, L., & Sonnet, P. (2013). Mobility, bioavailability and pH-dependent leaching of cadmium, zinc and lead in a contaminated soil amended with biochar. Chemosphere, 92(11), 1450-1457. https://doi.org/10.1016/j.chemosphere.2013.03.055 (Original work published 2013)