1. BP statistical review of world energy. Br Petrol 2003.
2. Oil and gas running out much faster than expected, says study. The Independent 2nd October, 2003.
3. Germany begins phasing out nuclear power. Guardian. Available from: http://www.guardian.co.uk/international/story/0,3604,1085555,00.html
4. Wave power poised to make commercial breakthrough;Harrington;The Scotsman,2003
5. Optimisation of clean environment parameters through renewable energy sources;Nawaz;Int J Ambient Energy,2003