N.F.L. Pulls the Plug on Its League in Europe - The New York Times
Two Different “Footballs” - Impakter
Europe the 'next frontier' in US college football recruiting
NFL Europe 2004, Koeln; Cologne Centurions - Frankfurt Galaxy; Mark
NFL in Germany: League eyes 2022 game in emerging European market
European Football vs. American Football
Why is the NFL not international? - Quora
Cologne centurions Nfl europe, Football helmets, Football league
TD]EU Leagues: Ukrainian League Of American Football - ULAF
Ranking quarterbacks who benefited from NFL Europe - Kurt Warner, Brad Johnson, Jon Kitna, Jake Delhomme - ESPN
American Football in Europe – Europe's Elite
The Import - Perfect Pervis