1. Past and future sustainability of water policies in Europe;Barraqué,2003
2. United Nations conference on the environment, 5-16 June 1972, stockholm;United Nations,1972
3. World conservation strategy: living resource conservation for sustainable development;International Union for Conservation of Nature & World Wildlife Fund,1980
4. Our common future/world commission on environment and development;Brundtland,1987
5. A framework for the practical application of the concepts of critical natural capital and strong sustainability;Ekins;Ecol Econ,2003