NHL on NBC: 2011 NHL Winter Classic January 1st, 2011 *8PM ET*
Winter Classic 2011: Ranking NHL Alternate Jerseys, News, Scores, Highlights, Stats, and Rumors
IceTime - Game 27 vs. Columbus Blue Jackets 02.03.17 by Pittsburgh Penguins - Issuu
A guide to the 2019 Winter Classic at Notre Dame Stadium - The Boston Globe
Top 10 Moments in the New York Rangers vs Philadelphia Flyers Rivalry
Flyers 5: Takeaways from Thursday's Flyers-Penguins Game
IceTime - Game 22 vs. Chicago Blackhawks 01.06.19 by Pittsburgh Penguins - Issuu
NHL uniform - Wikipedia
2008 NHL Winter Classic - Wikipedia
2011 NHL Winter Classic - Wikipedia
2011 Pittsburgh Penguins NHL Winter Classic Practice Worn Jerseys
National interest in the Winter Classic seems to be waning
Bruins & Penguins Winter Classic Jerseys Revealed!
Pittsburgh Penguins - Wikipedia