Reinecke, A., S. Reinecke, M. Maboeta, J. Odendaal, and R. Snyman. “Incorporating Biomarkers in Ecological Risk Assessment of Chemical Contaminants of Soils”. Suid-Afrikaans Tydskrif Vir Natuurwetenskap En Tegnologie / <i>South African Journal of Science and Technology</I&gt;, Vol. 26, no. 2, Sept. 2007, pp. 120-37, doi:10.4102/satnt.v26i2.129.