1. Road transport: EU-wide carbon dioxide emissions have increased by 24% since 1990.
2. Funding the transition to all zero-emission vehicles;Slowik,2019
3. EU proposes effective ban for new fossil-fuel cars from 2035, https://www.reuters.com/business/retail-consumer/eu-proposes-effective-ban-new-fossil-fuel-car-sales-2035--2021-07-14/.
4. CO2 fleet regulation and the future market diffusion of zero-emission trucks in Europe;Breed;Energy Policy,2021
5. Hydrogen roadmap Europe : a sustainable pathway for the European energy transition;Fuel Cells,2019