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Infrastructure pricing policy and rail liberalisation in the European Union : final report to the International Road Transport Union (IRU), Geneva
Kritzinger, Stephan, (2000)
Changing trains : railway reform and the role of competition ; the experience of six countries
Velde, Didier M. van de, (1999)
Excess-input expenditure estimated by means of an input-distance function : the case of public railways
Bosco, Bruno, (1996)