ORNL:10.2136/sssaj2003.0208
ORNL:10.2136/sssaj2004.0254
ORNL:10.2136/sssaj2004.0356
ORNL:10.2136/sssaj2006.0188
ORNL:10.2136/sssaj2007.0113
ORNL:10.2136/sssaj2008.0317
ORNL:10.2136/sssaj2014.04.0135
ORNL:10.2136/vzj2005.0036
ORNL:10.2136/vzj2007.0013
ORNL:10.2136/vzj2010.0102
ORNL:10.2136/vzj2012.0062
ORNL:10.2136/vzj2012.0135
ORNL:10.2136/vzj2012.0174