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Firm size and operating costs in urban bus transportation
Williams, Martin - In: The journal of industrial economics 28 (1979) 2, pp. 209-218
Persistent link: https://www.econbiz.de/10003000544
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Differences among cities, differences among firms, and costs of urban bus transport
Miller, David R. - In: The journal of industrial economics 19 (1970) 1, pp. 22-32
Persistent link: https://www.econbiz.de/10002495088