1. Establishing a framework for Community action in the field of water policyhttp://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2000:327:0001:0072:en:PDF
2. http://annuario.isprambiente.it
3. Fresh water resources and their managementhttp://www.ipcc.ch/publications_and_data/ar4/wg2/en/ch3.html
4. http://ec.europa.eu/clima/policies/adaptation/documentation_en.htm
5. http://www.eea.europa.eu/publications/towards-efficient-use-of-water