H. B. Richardson-f, . T. Hoffman-m, T. S. Roberts-r, and C. P. , A simulation model of long-term climate, livestock and vegetation interactions on communal rangelands in the semi-arid Succulent Karoo, Ecological Modelling, vol.183, pp.211-230, 2005.

R. A. , M. S. Hodgson-j, and S. W. Woodward-s, A model for simulating rule-based management of cow-calf systems, Comput. Electron. Agric, vol.42, pp.67-86, 2004.

T. P. , Z. S. Van-wijk-m, and C. M. Giller-k, Nutrient use efficiencies and crop responses to N, P and manure applications in Zimbabwean soils: Exploring management strategies across soil fertility gradients, Field Crops Research, vol.100, pp.348-368, 2007.

V. E. , A. N. Dugué-p, R. D. Tou-z, and . A. Diallo-m, Evolutions des pratiques agropastorales et changements climatiques en zone soudano-sahélienne d'Afrique de l'Ouest : proposition d'un modèle conceptuel de l'interaction climat-écosystèmes de production agropastoraux, 2008.