1. International Energy Agency 2012 Global carbon dioxide emissions increase by 1.0 Gt in 2011 to record high http://www.iea.org/newsroomandevents/news/2012/may/name
2. European Commission 2011 Communication from the Commission to the European Parliament and the Council Renewable Energy: Progressing towards the 2020 target http://eurex.europa.eu/LexUriServ/LexUriServ.do?uri=COM:2011:0031:FIN:EN:HTML
3. Analytical estimates of the energy yield potential from the Alderney Race (Channel Islands) using marine current energy converters;Bahaj;Renewable Energy,2004
4. US Department of Energy 2009 Report to Congress on the Potential Environmental Effects of Marine and Hydrokinetic Energy Technologies http://www1.eere.energy.gov/water/pdfs/doe_eisa_633b.pdf