1. ACEA, 2004. Tax Guide 2004, Brussels.
2. Blok, K., de Jager, D., Hendriks, C., 2001. Economic Evaluation of Sectoral Emission Reduction Objectives for Climate Change. Summary Report for Policymakers. ECOFYS Energy and Environment, AEA Technology, National Technical University of Athens. http://europa.eu.int/comm/environment/enveco/climate_change/sectoral_objectives.htm.
3. Commission of the European Communities, 2001. Communication from the Commission on alternative fuels for road transportation and on a set of measures to promote the use of biofuels, COM (2001) 547.
4. Commission of the European Communities, 2003. Proposal for a Council Regulation establishing common rules for direct support schemes under the common agricultural policy and support schemes for producers of certain crops. COM (2003) 23 final.
5. Commission of the European Communities, 2004. Structures of the Taxation systems in the European Union—Data 1995–2002. 2004 Edition. Directorate General Taxation and Customs Union.