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The UMTRI research review (Volume 28, Number 4 1997 October-December)
(Ann Arbor, Mich. : University of Michigan, Transportation Research Institute, 1997)
The UMTRI research review (Volume 28, Number 1 1997 January-March)
(Ann Arbor, Mich. : University of Michigan, Transportation Research Institute, 1997)
The UMTRI research review (Volume 28, Number 3 1997 July-September)
(Ann Arbor, Mich. : University of Michigan, Transportation Research Institute, 1997)
The UMTRI research review (Volume 28, Number 2 1997 April-June)
(Ann Arbor, Mich. : University of Michigan, Transportation Research Institute, 1997)