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Anenburg, Michael; Mavrogenes, John (2016). "Experimental observations on noble metal nanonuggets and Fe-Ti oxides, and the transport of platinum group elements in silicate melts". Geochimica et Cosmochimica Acta. 192: 258–278. Bibcode:2016GeCoA.192..258A. doi:10.1016/j.gca.2016.08.010.
Scoon, R. N.; Mitchell, A. A. (2012-12-01). "The Upper Zone of the Bushveld Complex at Roossenekal, South Africa: Geochemical Stratigraphy and Evidence of Multiple Episodes of Magma Replenishment". South African Journal of Geology. 115 (4): 515–534. Bibcode:2012SAJG..115..515S. doi:10.2113/gssajg.115.4.515. ISSN1012-0750.
Rauch, Sebastien; Fatoki, Olalekan S. (2015). "Impact of Platinum Group Element Emissions from Mining and Production Activities". Platinum Metals in the Environment. Environmental Science and Engineering. Springer, Berlin, Heidelberg. pp. 19–29. doi:10.1007/978-3-662-44559-4_2. ISBN9783662445587. S2CID73528299.
Scoon, R. N.; Mitchell, A. A. (2012-12-01). "The Upper Zone of the Bushveld Complex at Roossenekal, South Africa: Geochemical Stratigraphy and Evidence of Multiple Episodes of Magma Replenishment". South African Journal of Geology. 115 (4): 515–534. Bibcode:2012SAJG..115..515S. doi:10.2113/gssajg.115.4.515. ISSN1012-0750.
Mungall, James E.; Naldrett, Anthony J. (2008-08-01). "Ore Deposits of the Platinum-Group Elements". Elements. 4 (4): 253. doi:10.2113/GSELEMENTS.4.4.253. ISSN1811-5209.