1. IEA/OECD. Transport, energy and CO2: moving toward sustainability. International Energy Agency; 2009.
2. NPR. World Bank chief: biofuels boosting food prices. NPR2008.
3. Steenblik R. Government support for ethanol and biodiesel in selected OECD countries: A synthesis of reports addressing subsidies for biofuels in Australia, Canada, the European Union, Switzerland and the United States. Report prepared for the global subsidies initiative. International Institute for Sustainable Development, Geneva; September 2007. [accessed 01.06.09].
4. Life-cycle studies of biodiesel in Europe: a review addressing the variability of results and modeling issues;Malça;Renew Sustain Energy Rev,2011
5. Modeling the relationship between the oil price and global food prices;Chen;Appl Energy,2010