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SpringerPlus > 2014 > 3 > 1 > 1-10
Tourism Management > 2008 > 29 > 4 > 783-794
2008 Congress on Image and Signal Processing > 2 > 128 - 132
SpringerPlus > 2014 > 3 > 1 > 1-10
Tourism Management > 2008 > 29 > 4 > 783-794
2008 Congress on Image and Signal Processing > 2 > 128 - 132