1. ACEA – European Automobile Manufacturers’ Association. ACEA data on Passenger cars in the EU. Available online: -- https://www.acea.auto/ (last accessed: October 2023).
2. ACI – Automobile Club d’Italia. ACI Database on Passenger cars in Italy. Available online: -- https://www.aci.it/ (last accessed: October 2023).
3. BAFA – Federal Office for Economic Affairs and Export Control. BAFA Data on Passenger cars in Germany. Available online: -- https://www.bafa.de/ (last accessed: October 2023). Berri, A. (2002). Longitudinal Analysis of Car Ownership in Different Countries. In: Patriks- son, M., Labbé, M. (eds.). Transportation Planning. Applied Optimization, vol. 64. Springer, Boston, MA.
4. Bonus, H. (1973). Quasi-Engel curves, diffusion, and the ownership of major consumer dura- bles. Journal of Political Economy, 83, 655-677.
5. Conway, G. (2022). Life-Cycle Analysis for the Automotive Sector. In: Kalghatgi G., Agarwal A.K., Leach F., Senecal K. (eds). Engines and Fuels for Future Transport. En- ergy, Environment, and Sustainability. Singapore: Springer.