NFL lays out how Super Bowl footballs will be inspected, guarded
Cold weather could have deflated footballs, professor says
Football Physics: Why Deflated Balls Are Easier to Catch | Live Science
Inflation | Cogito Ergo
CFL, NFL have similar protocol regarding inflation of their footballs - TSN.ca
Higher, faster: what influences the aerodynamics of a football?
AP sources: NFL close to new football inspection rules
Ball (gridiron football) - Wikipedia
Tom Brady suspension case timeline
Why do some Wilson 'official size' footballs have inflation specifications of 7-9 PSI and others 11-13 PSI? - Quora
NFL air pressure inflation rule should be abolished after Deflategate - Sports Illustrated
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Deflategate: Video showing how officials check pressure of game balls - Sports Illustrated
Belichick says football inflation procedures will change - NBC Sports
The Deflategate Scientists Unlock Their Lab - The New York Times
/cdn.vox-cdn.com/uploads/chorus_asset/file/24322614/usa_today_9082240.jpg "Regulations you should know about NFL footballs - Dawgs By Nature")
Regulations you should know about NFL footballs - Dawgs By Nature
NFL Gets Tougher On Monitoring Football Air Pressure
Were the Colts' footballs below the required 12.5 psi? - SigmaZone
Ball inflation controversy creates a real mess for Patriots, NFL - NBC Sports
Preparing the Footballs for NFL Games | NFL Football Operations
The NFL Is Changing Ball Inflation Procedures
How to Inflate a Football: 13 Steps (with Pictures) - wikiHow
