DOE:10.1675/1524-4695(2002)025[0429:CHUBWS]2.0.CO;2
DOE:10.1675/1524-4695(2005)028[0139:PAONWS]2.0.CO;2
DOE:10.1675/1524-4695(2008)31[19:BSOWSN]2.0.CO;2
DOE:10.1675/1524-4695(2008)31[35:STLMOW]2.0.CO;2
DOE:10.1675/1524-4695(2008)31[42:APMOWS]2.0.CO;2