Carl Cheffers to receive first Super Bowl assignment - ABC7 New York
Officials selected for Chiefs-Steelers playoff matchup
Super Bowl Refs: Bill Vinovich heads Super Bowl LIV Officiating Crew - Sports Illustrated
Anderson, Vinovich, Hochuli, and Blakeman are Divisional Playoff referees – Football Zebras
Super Bowl LVII officiating crew by the numbers – Football Zebras
Super Bowl LVII - Wikipedia
The Winners and Losers From the NFL's Conference Championship Games - The Ringer
Hochuli, Blakeman, Cheffers, and Vinovich are Divisional Playoff referees – Football Zebras
A Solution for Awful N.F.L. Officiating? Simplify the Rules - The New York Times