1. UPb dating and isotopic characterization of carbonaceous components of Witwatersrand reefs;Allsopp,1986
2. 40-39Ar stepheating age determinations relevant to the formation of the Vredefort Dome, South Africa;Allsopp;S. Afr. J. Sci.,1991
3. Age limits to the Witwatersrand Supergroup;Allsopp,1986
4. Geological and geochemical investigations of the Roodekrans ultramafic complex and surrounding Archaean volcanic rocks, Krugersdorp district;Anhaeusser;Trans. Geol. Soc. S. Afr.,1977
5. The Archaean Kraaipan Group volcanosedimentary rocks and associated granites and gneisses of the southwestern Transvaal, northwestern Cape Province and Bophuthatswana;Anhaeusser,1991