USDA:10.1636/0161-8202(2002)030[0455:LTAPSA]2.0.CO;2
USDA:10.1636/0161-8202(2003)031[0040:AAAOOL]2.0.CO;2
USDA:10.1636/0161-8202(2003)031[0131:SPSIOG]2.0.CO;2
USDA:10.1636/S03-15
USDA:10.1636/T07-29.1