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Agricultural improvements and access to rail transportation : the American Midwest as a test case, 1850 - 1860
Atack, Jeremy, (2009)
The impact of access to rail transportation on agricultural improvement : the American Midwest as a test case, 1850-1860.
Atack, Jeremy, (2010)
The economic impact of rural road development on transportation assembly costs in agriculture
Tucker, Jay Dean, (1984)
Verkehrsbeanspruchung niedrig belasteter Straßen durch landwirtschaftliche Transporte
Lindemann, Gerhard, (1976)