When Damar Hamlin collapsed, the NFL deployed its emergency action plan - The Washington Post
NFL makes major change to instant replay by making called and uncalled pass-interference penalties reviewable
The 5 O'Clock Club: How instant replay is killing the NFL - Hogs Haven
Instant Replay: The Green Bay Diary of Jerry Kramer: Kramer, Jerry, Schaap, Dick, Yardley, Jonathan: 9780307743381: : Books
Inside the Problematic New Pass Interference Replay Rule - The Ringer
NFL owners approve instant-replay review of pass interference, including on non-calls - The Washington Post
Dolphins' offense plays smart, small ball in win over Patriots
The History of Instant Replay in the NFL, News, Scores, Highlights, Stats, and Rumors
How instant replay impacts the psyche and performance of officials
Replay review in gridiron football - Wikipedia
Hawk-Eye NFL Football Operations
The 5 O'Clock Club: How instant replay is killing the NFL - Hogs Haven