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Research in Transportation Economics > 2016 > 56 > C > 15-24
IEEE Journal of Selected Topics in Applied Earth Observations and Remote... > 2014 > 7 > 11 > 4453 - 4460
2010 International Conference on Computer Application and System Modeling (ICCASM 2010) > 11 > V11-328 - V11-332
Journal of Geographical Systems > 2005 > 7 > 2 > 207-227