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Unobserved heterogeneity and efficiency measurement in public transport
Cullmann, Astrid; Farsi, Mehdi; Filippini, Massimo - In: Journal of transport economics and policy 46 (2012) 1, pp. 51-66
Persistent link: https://www.econbiz.de/10009520146
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Ownership, contractual practices and technical efficiency : the case of urban public transport in France
Roy, William; Yvrande-Billon, Anne - In: Journal of transport economics and policy 41 (2007) 2, pp. 257-282
Persistent link: https://www.econbiz.de/10003467663