DOE:10.3159/07-RA-016.1
DOE:10.3159/09-RA-030.1
DOE:10.3159/10-RA-022.1
DOE:10.3159/1095-5674(2005)132[411:EODSOV]2.0.CO;2
DOE:10.3159/1095-5674(2006)133[460:LUHEIM]2.0.CO;2