Official Super Bowl XLVII Game Program
Superdome goes dark during Super Bowl XLVII
Super Bowl Blackout: New Orleans Superdome Loses Power
National Football League - Wikipedia
2013 Super Bowl -- Power outage stops game at Super Bowl XLVII - ESPN
Lights-out Super Bowl gets redefined – The Denver Post
New Orleans - Lights Out: Power Outage Stops Game At Super Bowl For Half Hour - VINnews
Ranking all 52 Super Bowls
Super Bowl Blackout Caused by Device Meant to Prevent It - The New York Times
Superdome power outage blamed on 'abnormality in the system', Super Bowl XLVII