1. Andriantiatsaholiniaina, L.A., 2001. Sustainability assessment using fuzzy logic. Ph.D. Dissertation. Chania, Dept. of Production Engineering and Management, Technical University of Crete, Greece.
2. Proceedings of the Conference on Sustainable Range Management, New Orleans Louisiana, January 5–8;Conference on Sustainable Range Management,2004
3. Cornelissen, A.M.G., 2003. The two faces of sustainability, fuzzy evaluation of sustainable development. Ph.D. Thesis, Wageningen University, The Netherlands.
4. Assessment of the contribution of sustainability indicators to sustainable development: a novel approach using fuzzy set theory;Cornelissen;Agriculture, Ecosystems and Environment,2001
5. Who knows? On the importance of identifying “experts” when researching local ecological knowledge;Davis;Human Ecology,2003