Garforth, J. M., Bailey, E. H., Tye, A. M., Young, S. D., & Lofts, S. (2016). Using isotopic dilution to assess chemical extraction of labile Ni, Cu, Zn, Cd and Pb in soils. Chemosphere, 155, https://doi.org/10.1016/j.chemosphere.2016.04.096