1. Increasing America's Fuel Economy;Alliance to Save Energy,2002
2. Fuel Economy Study: Comparing Performance and Cost of Various Ethanol Blends and Standard Unleaded Gasoline;American Coalition for Ethanol,2005
3. Argonne, 2004. Energy and Emission Benefits of Fuel Ethanol, Argonne National Laboratory, Transportation Technology R&D Center, September.
4. Spring Break in the U.S. Oil Industry: Price Spikes, Excess Profits, and Excuses;Cooper,2003
5. The Economic Impact of the Demand for Ethanol;Evans,1997