1. European Commission Statistical Pocketbook. EU Transport in Figures(2019). Available:https://ec.europa.eu/transport/facts-fundings/statistics/pocketbook-2019_en[accessed 1 April 2019].
2. DLR (Deutsches Zentrum für Luft‐ und Raumfahrt) Development of the Car Fleet in EU28+2 to Achieve the Paris Agreement Target to Limit Global Warming to 1.5°C(2018). Available:http://www.greenpeace.org/belgium/Global/belgium/report/2018/20180907_GP_EUCarFleet_1.5.pdf[accessed 1 April 2019].
3. United Nations The Paris Declaration on Electro‐Mobility and Climate Change and Call to Action. Available:https://unfccc.int/news/the-paris-declaration-on-electro-mobility-and-climate-change-and-call-to-action[accessed 1 April 2019].