Beuthe, M., Geerts, J.-F., Degrandsart, F., & Jourquin, B. (2002). External Costs of the Belgian Interurban Freight Traffic : A Network Analysis of their Internalisation. In W.R. Black and P. Nijkamp (ed.), Social Change and Sustainable Transport. https://hdl.handle.net/2078.5/59006