Buddy Ryan: How Bears coach invented the 46 defense - Sports
Buddy Ryan was always players first, and that's why they loved him
The story of how Buddy Ryan changed the NFL - Bleeding Green Nation
46 Defense Taylor Blitz Times
Buddy Ryan, Combative Defensive Genius in the N.F.L., Dies at 85
Chicago Bears Team History and Timeline - Sports Illustrated
Buddy Ryan, mastermind behind 1985 Bears defense, dies at 82
Buddy Ryan: How Bears coach invented the 46 defense - Sports
Buddy Ryan: How Bears coach invented the 46 defense - Sports
Rex Ryan Isn't Like Other Coaches - The New York Times