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Schiene und Straße : Vorschläge des BDI zur organischen Neugestaltung des Verkehrs
(1953)
The role of public policy toward inland surface transportation in Egypt
Abdelwahed, Farouk H., (1973)
Economics of transporation
Locklin, David Philip, (1966)
Uncertainty in the application of travel-behavior models
Hartgen, David T., (1981)
New York State's perspective on transportation energy contingency planning
Hartgen, David T., (1983)
Urban Transportation Economics
Small, Kenneth A., (1994)