1. 1. European Commission 2010. Communication from the Commission: Europe 2020. A Strategy for smart, sustainable and inclusive growth.
2. 2. European Comission 2011. Directorate-General for Mobility and Transport, White Paper on Transport: Roadmap to a Single European Transport Area: Towards a Competitive and Resource-efficient Transport System. Publications Office of the European Union.
3. 3. European Union 2009. Directive 2009/28/EC of the European Parliament and of the Council of 23 april 2009 on the promotion of the use of energy from renewable sources and amending and subsequently repealing directives 2001/77/EC and 2003/30/EC. Official Journal of the European Union 5.
4. 4. European Commission 2013. Communication from the commission to the european parliament, the council, the European economic and social committee and the committee of the regions. Clean Power for Transport: A European alternative fuels strategy.
5. 5. European Commission 2016. Directive 2014/94/EU of the European parliament and of the council of 22 October 2014 on the deployment of alternative fuels infrastructure. Brussels.