1. A roadmap for moving to a competitive low carbon economy in 2050;European Commission,2011
2. Key world energy statistics;International Energy Agency (IEA),2016
3. CO2 emissions from fuel combustion;International Energy Agency (IEA),2017
4. Transport (contribution of working group III to the fifth assessment report of the intergovernmental panel on climate change (IPCC));Sims,2014
5. Road transport and CO2 emissions: What are the challenges?;Santos;Transp. Policy,2017