NFL refs and instant replay are destroying the league
Upon Further Review: The NFL's Replay Review — Review Party Dot Com
NFL rule changes: Modified instant replay, more positions allowed to wear single-digit jerseys - The Washington Post
The NFL has an instant replay camera problem
Instant Replay • Hudl TV Support
Replay referee given more influence in 2021 NFL season - CGTN
Reviewing Instant Replay: Observations and Implications from Replay's Inaugural Season – Society for American Baseball Research
The History of Instant Replay in the NFL, News, Scores, Highlights, Stats, and Rumors
NFL admits mistake on Percy Harvin's touchdown
Inside the Problematic New Pass Interference Replay Rule - The Ringer
How instant replay impacts the psyche and performance of officials
Accountability: Fines & Appeals
Hurley: NFL Trying To Fix Instant Replay Problem By Not Addressing That Problem At All - CBS Boston
Creating the NFL Schedule