@Book{724195610, author="Ingram, Gregory K.", title="Vehicles, roads, and road use: alternative empirical specifications", series="Policy research working paper 2036", year="1998", publisher="World Bank, Research Advisory Group and Transport, Water, and Urban Development Department, Transport Division", address="Washington, DC", keywords="Automobile ownership; Income; Roads; Transportation, Automotive", note="Gregory K. Ingram and Zhi Liu", note="``December 1998''--Cover", note="Includes bibliographical references (p. 22)", note="Also available in print.", note="Online-Ausg. World Bank E-Library Archive Also available in print", url="http://elibrary.worldbank.org/content/workingpaper/10.1596/1813-9450-2036", language="English" }