Maier, Wolfgand D, Barnes, Sarah-Jane, Marsh, Julian S. The concentrations of the noble metals in Southern African flood-type basalts and MORB: implications for petrogenesis and magmatic sulphide exploration. 2003.

Maier, W D, Marsh, Julian S, Barnes, Sarah-Jane, Dodd, D C. The distribution of platinum group elements in the Insizwa lobe, Mount Ayliff Complex, South Africa: implications for Ni-Cu-PGE sulfide exploration in the Karoo igneous province. 2002.