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Contemporary problems of European waterways
Bierman, Don E., (1988)
The influence of free-trade on the environmental effects of transportation : scale-, technique- and compositions-effects
Vannoni, Stefan, (2007)
Inland navigation and economic development in nineteenth-century Europe
Kunz, Andreas, (1995)
Die Bedeutung der Bundeswasserstraßen in der Verkehrspolitik
Bergmeier, Walter, (1985)