BEEF Magazine article from May, 2009 at http://beefmagazine.com/beef-quality/0501-beef-carcasses-grading-instrument/
BEEF Magazine commentary from February, 2009 at http://login.beefmagazine.com/wall.aspx?ERIGHTS_TARGET=http%3A%2F%2Fbeefmagazine.com%2Fgovernment%2F0201-mcool-way%2F