How did it become legal to be so pushy in the NFL? - Los Angeles Times
NFL History: 100 objects that tell the story of football - Sports
Selection of Don Doxsie's columns and other stories from recent years
Philly Special - Wikipedia
News Blitz 2/13: Brady's stability
Officiating video: game-ending replay, an extended catch process
I Would've Rather Not Known the Philly Special Was An Illegal
Official Super Bowl XLVII Game Program
Regular Season Game 9 - Chiefs vs. Packers (11-7-21) by Kansas
Bob Boylston, 2-time Super Bowl umpire, dies at 81 – Football Zebras