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▪ Websites
- US EIA. Annual Energy Review 2010. www.eia.gov/totalenergy/data/annual
- US EIA. Short-Term Energy Outlook. http://205.254.135.24/steo/steo_full.pdf
- US Department of Energy. Environmental benefits of biofuels. http://alternativeenergy.procon.org/view.answers.php?questionID=001177
- Renewable Fuels Association. Ethanol facts: environment. www.ethanolrfa.org/pages/ethanol-facts-environment
- Houghton J, Weatherwax S, Ferrell J. Breaking the biological barriers to cellulosic ethanol: a joint research agenda. http://genomicscience.energy.gov/biofuels/2005workshop/2005low_bioprocess.pdf