By Anming Z.   Aldridge D.   in Transportation Research Part E: Logistics and Transportation Review

ISSN:1366-5545|33|1|29-42

Elsevier‎(1997)‎

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By Tae H.O.   Anming Z.   Yimin Z.   in Transportation Research Part B: Methodological

ISSN:0191-2615|30|1|11-18

Elsevier‎(1996)‎

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