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Management > 2014 > 18 > 1 > 446-459
Transportation Research Procedia > 2014 > 1 > 1 > 243-252
Management > 2014 > Vol. 18, no. 1 > 446--459
Management > 2014 > 18 > 1 > 446-459
Transportation Research Procedia > 2014 > 1 > 1 > 243-252
Management > 2014 > Vol. 18, no. 1 > 446--459