The Dallas Cowboys last won a Super Bowl 26 years ago today - Blogging The Boys
Super Bowl: History of back-to-back winners
49ers have proven frustrating foe for Cowboys
Can the Cowboys Make It Back to the NFC Title Game for the First Time in 25 Years?
Dan Reeves, Coach Who Reached (but Lost) Four Super Bowls, Dies at 77 - The New York Times
49ers-Cowboys: Most memorable playoff games from one of NFL's great rivalries
Cowboys Doomed by Miscues Against 49ers' Defense - The New York Times
Super Bowl LVII: DeVonta Smith can join short list of stars
Troy Aikman, American Football Wiki