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This is an update request for the document An investigation into passenger preference for express trains during peak hours
by Junghan Baek and Keemin Sohn
Your paper was deposited in MUCC (Crossref)
and appears online at http://link.springer.com/content/pdf/10.1007/s11116-015-9592-3.pdf
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ensure that the original record at this location is updated/removed.