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Patterns of metropolitan development : what have we learned?
Ingram, Gregory K. - 1997
Persistent link: https://www.econbiz.de/10000976668
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Motorization and the provision of roads in countries and cities
Ingram, Gregory K.; Zhi, Liu - 1997
Persistent link: https://www.econbiz.de/10000976670
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Vehicles, roads, and road use : alternative empirical specifications
Ingram, Gregory K.; Zhi, Liu - 1998
Persistent link: https://www.econbiz.de/10001365686
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Determinants of motorization and road provision
Ingram, Gregory K.; Zhi, Liu - 1999
Persistent link: https://www.econbiz.de/10001365980