Jim Henneman: Indisputable Evidence That Instant Replay Isn't Going Anywhere - PressBox
Replay review in gridiron football - Wikipedia
NFL may expand replay, automatically review all end zone plays - NBC Sports
On Further Review, the NFL's Instant Replay is Finally Instant
NFL owners pass seven rule changes but the league is divided over the expansion of replay to all plays
Upon Further Review: The NFL's Replay Review — Review Party Dot Com
League needs to take replay review out of referee's hands - NBC Sports
History of Instant Replay
Instant Replay Game: 25 years later
Instant Replay: The Green Bay Diary of Jerry Kramer eBook : Kramer, Jerry: Kindle Store
Why NFL's expanded instant replay is step in right direction – The Denver Post
History of Instant Replay