Former NFL coach, defensive guru Buddy Ryan dies at age 85 - ESPN
Ditka vs. Ryan: The Feud That Fueled the '85 Chicago Bears - WSJ
Buddy Ryan, ex-Cowboy, dies at 85, Sports
Jan. 26, 1986: Buddy Ryan loves his annihilators – Hartford Courant
Buddy Ryan: Legendary NFL coach inspires love and hate - Sports Illustrated Vault
Ranking the best decisions in Bears history: Mike Ditka, Jim Finks and the T-formation - The Athletic
Former Bears defensive guru Buddy Ryan dead at 85 - Chicago Sun-Times
As Irascible as He Was Brilliant, Buddy Ryan Left Mark on NFL None Should Forget, News, Scores, Highlights, Stats, and Rumors
Legendary NFL coach Buddy Ryan dead at 85 (w/video)
Buddy Ryan, mastermind behind 1985 Bears defense, dies at 82 – Orange County Register
Buddy Ryan, from the mouths of the players
Jan. 26, 1986: Buddy Ryan loves his annihilators
Lawlor: Why Buddy Ryan Is So Beloved
Mike Ditka on Buddy Ryan: No way we win anything without his defense
Mike Ditka: Buddy Ryan bond 'respectful,' if not always 'rosy' - Chicago Sun-Times