Limits of Approximation Algorithms: PCPs and Unique Games (DIMACS Tutorial Lecture Notes) - Prahladh Harsha; Moses Charikar; Matthew Andrews; Sanjeev Arora; Subhash Khot; Dana Moshkovitz; Lisa Zhang; Ashkan Aazami; Dev Desai; Igor Gorodezky; Geetha Jagannathan; Alexander S. Kulikov; et al. (CoRR, 2010)