1. Bouma, J., Kuyvenhoven, A., Bouwman, B.A.M., Luyten, I.C., H.G. Zandstra, 1995. Eco-regional Approaches for Sustainable Land-Use and Food Production. Kluver, Dordrecht, Holland.
2. Cairns, J., 1994. The current state of watersheds in the United States: ecological and institutional concerns. In: Proceedings of Watershed-93 — A National Conference on Watershed Management Alexandria, VA. US Forest Service publication, pp. 11–17.
3. Dumanski, J., Craswell, E., 1998. Resource management domains for evaluation and management of agro-ecological systems. In: Syers, J.K. (Ed.), Proceedings of Conference on Resources Management Domains, Kuala Lumpur. International Board for Soil Research and Management (IBSRAM), Proceedings 16, pp. 1–16.
4. Eswaran, H., Beinroth, F., Reich, P., 1998. Biophysical considerations in developing resource management domains. In: Syers, J.K. (Ed.), Proceedings of Conference on Resources Management Domains, Kuala Lumpur. International Board for Soil Research and Management (IBSRAM), Proceedings 16, pp. 61–78.
5. FAO, 1993. An International Framework for Evaluating Sustainable Land Management. Food and Agriculture Organization, Report 73. Rome.