1. Critical reviews of biological pest control in South Africa 2. The prickly pear, Opuntia ficus-indica (L) Miller;Annecke;Journal of the Entomological Society of South Africa,1978
2. Trees in grasslands: biogeochemical consequences of woody plant expansion;Archer,2001
3. Brush management as a rangeland conservation strategy: a critical evaluation;Archer,2011
4. Potential ecological distribution of alien invasive species and risk assessment: a case study of buffel grass in arid regions of Mexico;Arriaga;Conservation Biology,2004
5. Wildlife diseases and veterinary controls: a savanna ecosystem perspective;Bengis,2003