Natural Resources Research
Natural Resources Research > 2004 > 13 > 2 > 87-95
Natural Resources Research > 2005 > 14 > 1 > 65-76
Natural Resources Research > 2005 > 14 > 2 > 125-128
Natural Resources Research > 2012 > 21 > 4 > 495-507
Natural Resources Research > 2004 > 13 > 2 > 87-95
Natural Resources Research > 2005 > 14 > 1 > 65-76
Natural Resources Research > 2005 > 14 > 2 > 125-128
Natural Resources Research > 2012 > 21 > 4 > 495-507