Bob Kuechenberg, former Pro Bowler and member of undefeated 1972 Dolphins, dies at 71 - The San Diego Union-Tribune
Former Vikings lineman Bob Lurtsema looks back on 'terrible call' that helped Dolphins go undefeated 50 years ago – Twin Cities
Jim Kiick former Miami Dolphin, Denver Bronco and Washington Redskin passed away at the age of 73
Why isn't Jim Plunkett in the NFL Hall of Fame? - Quora
Hall has no room for Sharpe – The Denver Post
Ex-Dolphins Hall of Fame center Jim Langer dies at 71
Former Vikings player Jim Langer among NFL's all-time best centers
Jim Langer - South Dakota Sports Hall of Fame