1. The carrier status of sheep, cattle, and African buffalo recovered from heartwater;Andrew;Vet. Parasitol.,1989
2. Danger of introducing heartwater onto the American mainland: Potential role of indigenous and exotic Amblyomma ticks;Barre;Onderstepoort J. Vet. Res.,1987
3. Serologic analysis of penitentiary group using raw milk from a Q fever-infected herd;Benson;Public Health Report,1963
4. The development of a new heartwater vaccine using Amblyomma hebraeum nymphae infected with Cowdria ruminantium;Bezuidenhout,1981
5. The epidemiology and control of heartwater and other tick-borne diseases of cattle in South Africa;Bezuidenhout;Onderstepoort J. Vet. Res.,1985