1. Birur DK, Hertel TW, Tyner WE. Impact of biofuel production on world agricultural markets: a computable general equilibrium analysis. GTAP Working Paper No. 53; 2008. Available [online]: 〈https://www.gtap.agecon.purdue.edu/resources/download/4034.pdf?origin=publication_detail〉
2. WWI. Biofuels for transportation. Global potential and implications for sustainable agriculture and energy in the 21st century. Extended summary. A report prepared by the World Watch Institute for the German federal Ministry of Food, Agriculture and Consumer Protection; 2006.
3. Ethanol production using corn, switchgrass, and wood; biodiesel production using soybean and sunflower;Pimental;Nat Resour Res,2005
4. Potential of Miscanthus grasses to provide energy and hence reduce greenhouse gas emissions;Hastings;Agron Sustain Dev,2008
5. UNICA. Statistics of sugarcane sector—season 2006/ 2007. UNCA; 2008.