Bears-Packers finale a 1st with title at stake
2011 Green Bay Packers season - Wikiwand
The complete history of the Bears-Packers rivalry - Windy City Gridiron
Green Bay Packers and Chicago Bears Rivalry Integral to NFL History
2015 Chicago Bears, American Football Wiki
49ers–Packers rivalry - Wikipedia
Green Bay Packers - Wikipedia
Green Bay Packers - Wikipedia
Bears–Packers rivalry - Wikipedia
Chicago Bears vs Green Bay Packers - Difference and Comparison