1. Resilience thinking: sustaining ecosystems and people in a changing world;Walker,2006
2. Grass productivity;Voisin,1959
3. Short duration grazing in Rhodesia;Goodloe;Journal of Range Management,1969
4. Holistic management: a new framework for decision making;Savory,1999
5. Short duration grazing: the facts in 1999;Holechek;Rangelands,2000