On Further Review, the NFL's Instant Replay is Finally Instant
NFL should consider NCAA replay model – Football Zebras
Being college football replay official offers unique view of game
Montana State's mistakes, misfortune magnified in SDSU loss
Rule change expanding role for replay official is expected to pass - NBC Sports
NFL teams take care of last-minute business prior to vacation - The Boston Globe
League Meetings Bring 2019 Rule Changes
30 Changes Needed In Sports. I love sports. There is so much to love…, by Peter Bobrinskoy
Automatic Ejections Part of College FB Rule Changes - Duke University
2021 NFL rule changes guide - What to expect from more replay help, jersey number flexibility, more - ESPN
Eagles 25, Patriots 20: Tom Brady's return spoiled; live updates and analysis
History of Instant Replay
Pass Interference or Not? No One in the N.F.L. Seems to Know - The New York Times
The Future of the Replay Booth Is Now Under Review
Automatic: NFL replay booth playing bigger role