NFL at 100: Ravens beat 49ers in lights-out Super Bowl 47
Lights Out, It Was A Memorable Super Bowl : The Two-Way : NPR
Peter King: Lights go out, but Ravens power on, in thrilling Super Bowl XLVII - Sports Illustrated
49ers set to meet Ravens again, their last Super Bowl foe
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Lights out: Ravens beat 49ers 34-31 in Super Bowl
Super Bowl XLVII - Wikipedia
Super Bowl 2013 score: Ravens hold on and beat 49ers, 34-31 - Pats Pulpit
Lights out: Ravens beat 49ers 34-31 in Super Bowl – Greeley Tribune
SUPER BOWL WATCH: 49ers surge after power goes out - The San Diego Union-Tribune