Natural Resources Research
Natural Resources Research > 1999 > 8 > 1 > 37-47
Natural Resources Research > 2005 > 14 > 3 > 265-281
Natural Resources Research > 2005 > 14 > 3 > 235-248
Natural Resources Research > 2005 > 14 > 3 > 137-143
Natural Resources Research > 1999 > 8 > 1 > 37-47
Natural Resources Research > 2005 > 14 > 3 > 265-281
Natural Resources Research > 2005 > 14 > 3 > 235-248
Natural Resources Research > 2005 > 14 > 3 > 137-143