1. The prevalence of hepatitis B (Australia) antigen in southern Africa;Bersohn;South African Medical Journal,1974
2. Hepatitis B virus carrier state in black children in Ovamboland: role of perinatal and horizontal infection;Botha;Lancet,1984
3. Prevalence of hepatitis virus and some arbovirus infections in Kavango, northern SWA/Namibia;Joubert;South African Medical Journal,1985
4. Infection of wild populations of the tampan, Ornithodoros moubata Murray, with hepatitis B virus in the Kavango, northern Namibia;Joubert;South African Journal of Science,1985
5. An experimental assessment of the tampan tick Ornithodoros moubata Murray, as vector of hepatitis B virus;Jupp;Medical and Veterinary Entomology,1987