KinnairdJ. A., KrugerF. J., NexP. A. M. and CawthornR. G.2002. Chromitite formation - a key to understanding processes of platinum enrichment, Transactions of the Institute of Mining and Metallurgy, 111, B23–B35.
2.
KrugerF. J.1994. The Sr-isotopic stratigraphy of the western Bushveld Complex, South African Journal of Geology, 97, 393–398.
3.
StevensF.2007. Geology and mineralisation of the Sheba's Ridge area, Eastern Bushveld Complex, South Africa. MSc thesis. University of the Witwatersrand. 226 pp.