1. International Energy Agency (2006) World Energy Outlook 2006, p 8
2. http://science.jrank.org/pages/2575/Ethanol-Advantages-ethanol-an-alternative-fuel
3. Dong FX (2007) Food security and biofuels development: the case of China. www.card.iastate.edu
4. Qu YB, Zhu M, Liu K, Bao X, Lin J (2006) Studies on cellulosic ethanol production for sustainable supply of liquid fuel in China. Biotechnol J 1(11):1235–1240
5. Foreign Agricultural Service, U.S. Department of Agriculture (FAS-USDA) (2006) People’s Republic of China bio-fuels annual 2006. Gain report number CH7039, Washington, DC