1. Meeting the Mandate for Biofuels: Implications for Land Use, Food and Fuel Prices
2. An integrated biogeochemical and economic analysis of bioenergy crops in the Midwestern United States
3. Herbaceous Crops with Potential for Biofuel Production in the USA;Lemus R.;CABI Reviews: Perspectives in Agriculture, Veterinary Science, Nutrition and Natural Resources,2009
4. National Agricultural Statistics Service.U.S. and All States County Data—Crop2009http://www.nass.usda.gov/QuickStats/Create_County_All.jsp(accessed October 19 2010).
5. PerlackR. D.WrightL. L.TurhollowA. F.GrahamR. L.StokesB. J.ErbachD. C.Biomass as Feedstock for a Bioenergy and Bioproducts Industry: The Technical Feasibility of a Billion-Ton Annual Supply2005Report no. ORNL/TM-2005/66. National Laboratory Oak Ridge TN.