49ers set to meet Ravens again, their last Super Bowl foe
Super Bowl XLVII postscript: 49ers fall short of Ravens, final plays questioned
Super Bowl XLVII - Wikipedia
Ravens vs. Patriots Final Score 28-13: Baltimore Advances to Super Bowl XLVII - Pats Pulpit
Super Bowl 2013 Score by Quarter: Full Ravens vs. 49ers Recap, News, Scores, Highlights, Stats, and Rumors
Super Bowl 2013: Ray Lewis ends brilliant career with championship - CBS News
Lights out at Super Bowl; Ravens lead 49ers 34-29 - The San Diego Union-Tribune
Super Bowl XLVII: Ravens vs. 49ers highlights
49ers acquire WR Anquan Boldin from Ravens – Santa Cruz Sentinel