Green Bay Packers and Chicago Bears: The NFL's greatest rivalry, 1935-80
The complete history of the Bears-Packers rivalry - Windy City Gridiron
A rivalry 100 years in the making: Chicago Bears vs Green Bay Packers
Green Bay Packers smother Chicago Bears to take victory in NFL season opener, NFL
Bears vs. Packers rivalry through the years -- Chicago Tribune
Bears-Packers: 'Cheddar Curtain' Rivals For The Ages : NPR
Bears vs. Packers rivalry through the years -- Chicago Tribune
Packers-Bears: The NFL's greatest rivalry - ESPN - Stats & Info- ESPN
A rivalry 100 years in the making: Chicago Bears vs Green Bay Packers
Green Bay Packers - Chicago Bears Rivalry Since 1921 - Fox Valley Web Design LLC
Green Bay Packers and Chicago Bears: The NFL's greatest rivalry, 1935-80