1. Andorra Government, 2003. National topographic map. Scale: 1:5000. Contour lines with 25m interval. Material from Ministeri d’Economia i Territori.
2. Andorra Government, 2012. Llibre Blanc de l’Energia d’Andorra.
3. The ARTEMIS European driving cycles for measuring car pollutant emissions;André;Sci. Total Environ.,2004
4. Real-world European driving cycles, for measuring pollutant emissions from high- and low-powered cars;André;Atmos. Environ.,2006
5. Bandivadekar, A., Bodek, K., Cheah, L., Evans, C., Groode, T., Heywood, J., Kasseris, E., Kromer, M., Weiss, M., 2008. On the road in 2035: reducing transportation’s petroleum consumption and GHG emissions.