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Cost savings and productivity in the railroad industry
Wilson, Wesley W., (1997)
Vertical and horizontal separation in the European railway sector and its effects on productivity
Cantos Sanchez, P., (2010)
Productivity growth in European railways : technological progress, efficiency change and scale effects
Wetzel, Heike, (2008)
Sequential estimation of railroad costs for specific traffic
Bereskin, C. Gregory, (2001)
Estimation of cost effects for potential trans-continental railroad mergers