Cayley graphs

Volume 4, Article 3 (pages 53-76)
Derandomizing the Ahlswede-Winter matrix-valued Chernoff bound using pessimistic estimators, and applications
by Avi Wigderson and David Xiao
Volume 2, Article 5 (pages 91-120)
Iterative Construction of Cayley Expander Graphs
by Eyal Rozenman, Aner Shalev, and Avi Wigderson