1. Energy Demands on Water Resources: Report to Congress on the Interdependency of Energy and Water (US Department of Energy, 2006).
2. Mungin, L. The Atlanta Journal-Constitution 20 December 2007;
http://www.ajc.com/metro/content/metro/stories/ 2007/12/19/targets_1220.html
3. http://internationalrivers.org/en/latin-america/paraguay-paran%C3%A1- basin/uruguay-river-its-dams-and-its-people-are-running-out-water
4. http://www.physorg.com/news122050436.html
5. Avison, A. The Eagle 20 January 2008;
http://www.theeagle.com/local/Water_pits_landowners_against_plant