1972 Miami Dolphins: The inside story of the only perfect season in NFL history
Mike Holmgren - Wikipedia
Buccaneers get first win, add to Dolphins' problems – Orange County Register
Don Shula, NFL's all-time winningest head coach and leader of undefeated 1972 Dolphins, dies at age 90
Don Shula death: Dan Marino, NFL players pay tribute - Sports Illustrated
Bud Grant, stoic coach of powerful Vikings teams, dies at 95
Don Shula, NFL coach who led Dolphins to undefeated season, dead at 90
Legendary Miami Dolphins Coach Don Shula Dies at 90 - WSJ
Shula honored by U.S. Senate
Legendary Dolphins Head Coach Don Shula passed away peacefully at his home this morning.
Indianapolis Colts, American Football Database
Jim Langer, center for Miami Dolphins' Super Bowl teams, dies at 71
Following Greatness: Don Shula Career Timeline
Don Shula, longtime Miami Dolphins coach and two-time Super Bowl winner, dies at 90
Dolphins Hall of Fame coach Don Shula dies at 90 - ESPN