1. Breaking the Biological Barriers to Cellulosic Ethanol: A Joint Research Agenda, DOE/SC-0095;US Department of Energy,2006
2. The path forward for biofuels and biomaterials;Ragauskas;Science,2006
3. Can biofuels finally take center stage?;Schubert;Nat Biotechnol,2006
4. Annual Energy Outlook 2007;US Energy Information Administration,2007
5. Ethanol Industry Outlook 2007: Building New Horizons;Renewable Fuels Association,2007