1. Reducing cattle numbers on Southern African communal range: Is it worth It?;Abel,1993
2. What's in a number? The carrying capacity controversy on the communal rangelands of Southern Africa;Abel,1993
3. Revisited: the overstocking controversy in semi-arid Africa. 3. Sustainability and stocking rates on African rangelands;Abel;World Animal Review,1996
4. Land degradation, stocking rates and conservation policies in the communal rangelands of Botswana and Zimbabwe;Abel;Land Degradation and Rehabilitation,1989