1. ACEA (2019) ACEA report: vehicles in use—Europe 2019. European Automobile Manufacturers’ Association, Brussels, Belgium
2. ACEA (2021) ACEA report: vehicles in use—Europe, Jan 2021. European Automobile Manufacturers’ Association, Brussels, Belgium
3. Alalwan HA, Alminshid AH, Aljaafari HA (2019) Promising evolution of biofuel generations: subject review. Renew Energy Focus 28:127–139. https://doi.org/10.1016/j.ref.2018.12.006
4. ANFAVEA (2020) Brazilian automotive industry yearbook 2020. Brazilian Automotive Industry Association, São Paulo, Brazil
5. Autostat (2018) The average age of cars in Russia has exceeded 13 years. https://eng.autostat.ru/news/15457/