By de Jong Gerard   Gunn Hugh   in Journal of Transport Economics and Policy (JTEP)

ISSN:0022-5258|35|2|137-160

Journal of Transport Economics and Policy‎(2001)‎

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By DE JONG GERARD   GUNN HUGH   WALKER WARREN   in Transport Reviews

ISSN:1464-5327|24|1|103-124

Routledge Ltd‎(2004)‎

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