Investment in transport infrastructure : in the 1980's
Statistical trends in transport : = Annales statistiques de transport
Contribution of road traffic emissions to tropospheric ozone in Europe and Germany
Annales statistiques de transport : = Statistical trends in transport
Integration von Infrastrukturen in Europa im historischen Vergleich ; Band 5
Fifty Years of Transport Policy : Successes, Failures and New Challenges
Communication in road safety : international seminar, Warsaw, 2 - 3 October 1997