1. Directive 2009/30/EC of the European Parliament and of the Council of 23 April 2009;The European Parliament and the Council of the European Union;Official Journal of the European Union,2009
2. Ethanol for a Sustainable Energy Future;Goldemburg;Science,2007
3. Emission characteristics of gasohol and diesohol;Demirbas;Energy Sources, Part A,2009
4. Ethanol–diesel fuel blends –– a review;Hansen;Bioresource Technology,2005
5. A comprehensive examination of the effect of ethanol-blended gasoline on intake valve deposits in spark-ignited engines;Vilardo,2007