http://sports.yahoo.com/blogs/ncaaf-dr-saturday/arizona-state-ad-lashes-notre-dame-because-possible-195200543--ncaaf.html
http://archive.azcentral.com/sports/asu/articles/20130611asu-notre-dame-reach-deal-to-keep-football-game.html
Interestingly the ASU-ND contract didn't have a buyout clause.