1. Degobert, P. (1995) Automobiles and Air Pollution, SAE and Editions Technip, Paris.
2. EEA (1996) Chapter 7: Road Transport, 71 pp, and Chapter 8: Off-Road Transport, 40 pp, in Joint EMEP/CORINAIR “Atmospheric Emissions Inventory Guidebook”, Volume 2, Copenhagen.
3. European Commission (1996) Air Quality Report of the Auto Oil Programme Report of Subgroup 2, Brussels.
4. ECMT (1995) (European Conference of Ministers of Transport) 1965 – 1990 Statistical trends in Transport, Paris.
5. Hansen, J.Q., Winther, M., Sorensen, S.C. (1995) The Influence of driving pattersn on petrol passenger car emissions, Science of the Total Environment, 169, 129–139.