1. Abel , N.O.J Blaikie , P.M (1990) Land degradation, stocking rates and conservation policies in the communal rangelands of Botswana and Zimbabwe ODI Pastoral Development Network Paper 29a
2. Ashley , C Barnes , J Healy , T (1994) Profits, equity, growth and sustainability: the potential role of wildlife enterprises in Caprivi and other communal areas of Namibia DEA Research Discussion Paper 2
3. Ashley , C Garland , E (1994) Promoting community-based tourism development: why, what and how DEA Research Discussion Paper 4
4. Ashley , C La Franchi , C (1997) Livelihood strategies of rural households in Caprivi: implications for conservancies and natural resource management Research Discussion Paper 20
5. 24. Stability, Probability, and the Topology of Food Webs