Natural Resources Research
Natural Resources Research > 2011 > 20 > 3 > 157-176
Natural Resources Research > 2011 > 20 > 3 > 143-155
Natural Resources Research > 2011 > 20 > 3 > 177-191
Natural Resources Research > 2011 > 20 > 3 > 193-205
Natural Resources Research > 2011 > 20 > 3 > 157-176
Natural Resources Research > 2011 > 20 > 3 > 143-155
Natural Resources Research > 2011 > 20 > 3 > 177-191
Natural Resources Research > 2011 > 20 > 3 > 193-205