1. K/Ar age determinations of the northern Damara Branch and their implications for the structural and metamorphic evolution of the Damara Orogen, Namibia;Ahrendt,1983
2. The geology and regional correlation of the Proterozoic Okwa Inlier, western Botswana;Aldiss;Precambrian Research,1992
3. RbSr age measurements on the Umkondo dolerites of Rhodesia;Allsopp,1973
4. RbSr and UPb geochronology of late Precambrian-Early Palaeozoic Igneous Activity in the Richtersveld (South Africa) and southern South West Africa;Allsopp,1979
5. The age of the Umkondo Group, eastern Zimbabwe, and implications for palaeomagnetic correlations;Allsopp;South African Journal Geology,1989