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Ecological Economics > 2011 > 70 > 8 > 1492-1498
2009 WRI Global Congress on Intelligent Systems > 2 > 479 - 483
Journal of Mountain Science > 2007 > 4 > 2 > 146-154
Ecological Economics > 2011 > 70 > 8 > 1492-1498
2009 WRI Global Congress on Intelligent Systems > 2 > 479 - 483
Journal of Mountain Science > 2007 > 4 > 2 > 146-154