By Koekebakker Steen   Adland Roar   Sødal Sigbjørn   in Journal of Transport Economics and Policy (JTEP)

ISSN:0022-5258|40|3|449-472

Journal of Transport Economics and Policy‎(2006)‎

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By Sødal Sigbjørn   Koekebakker Steen   Adland Roar   in Applied Economics

ISSN:1466-4283|41|22|2793-2807

Routledge Ltd‎(2009)‎

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