6. References

Cruz de Cavalho E., 1974: "Traditional " and "modern" patterns of cattle raising in southwestern Angola: a critical evaluation of change from pastoralism to ranching. Journal of Developing Areas 8, pp. 199-226.

DIN 18910, 1974: Klima in geschlossenen Sten. Berlin: Beuth-Vertrieb.

Galaty J.G., Aronson D., Salzman P.C., Chouinard A. (Eds.), 1980: The future of pastoral peoples. Ottawa: International Development Research Centre (IDRC).

Harrington G. N., Wilson A. D., Young M. D. (Eds.), 1984: Management of Australia's rangelands. Melbourne: Commonwealth Scientific and Industrial Research Organisation.

Jahnke H. E., 1982: Livestock production systems and livestock development in tropical Africa. Kiel: Kieler Wissenschafts-Verlag Vauk.

King J. M., 1983: Livestock water needs in pastoral Africa in relation to climate and forage. ILCA Research Report No 7. Addis Ababa: International Livestock Centre for Africa.

Kotschi J., Adelhelm R., Bayer W., von B., Haas J., Waters-Bayer A., 1986: Towards control of desertification in African drylands: problems, experiences, guidelines. GTZ special publication No. 168. Eschborn: GTZ.

Niamir M., 1990: Herders' decision-making in natural resources management in arid and semi-arid Africa. Community Forestry Note 4. Rome: FAO.

Pastoral Development Network Discussion Papers. London Overseas Development Institute.

de Ridder N., Wagenaar K. T., 1986: Energy and protein balances in traditional livestock systems and ranching in eastern Botswana. Agricultural Systems 20, pp. 1-16.

Sandford S., 1983: Management of pastoral development in the Third World. Chichester: John Wiley & Sons.

Squires V., 1981: Livestock Management in the arid zone. Melbourne: Inkata Press.

VDI-Richtlinien 3471, 1986: Emissionsminderung Tierhaltung Schweine. Berlin: Beuth-Verlag.

VDI-Richtlinien 3472, 1989: Emissionsminderung Tierhaltung H Berlin: Beuth-Verlag.