The NFL's strategy for growing the sport overseas, particularly Europe - Sports Illustrated
Can the US ever get Europeans to like American football? – Business Destinations – Make travel your business
Ranking quarterbacks who benefited from NFL Europe - Kurt Warner, Brad Johnson, Jon Kitna, Jake Delhomme - ESPN
American football - Wikipedia
Oral history -- 10 years after NFL Europe's demise, alumni such as Kurt Warner remember developmental league fondly - ESPN
European American Football: Playing in Pro Football Leagues Overseas
TDEU: Top 10 Football Uniforms Of 2013.
NFL in Germany: League eyes 2022 game in emerging European market
NFL Goes International: Takes Europe and Mexico - The New Paltz Oracle
Micah Parsons is taking football overseas: 'Europe, here we come'