Gregg Rosenthall (July 25, 2011). "The CBA in a nutshell". ProFootballTalk. NBC Sports. Archived from the original on June 21, 2012. Retrieved August 14, 2014.
Gregg Rosenthall (July 25, 2011). "The CBA in a nutshell". ProFootballTalk. NBC Sports. Archived from the original on June 21, 2012. Retrieved August 14, 2014.