USDA:10.1666/06-127.1
USDA:10.1666/09-033R1.1
USDA:10.1666/0022-3360(2005)079[0862:OSSFPO]2.0.CO;2
USDA:10.1666/0022-3360(2006)80[1:FMVFTL]2.0.CO;2