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Development Policy Review > 30 > 5 > 617 - 640
Journal of Economic Behavior and Organization > 2012 > 83 > 3 > 353-371
Biological Conservation > 2006 > 128 > 2 > 147-157
Nutrition Research > 2002 > 22 > 9 > 1009-1016
Biomass and Bioenergy > 1995 > 8 > 3 > 181-190