@TechReport{wong11regretTR, 
author = {E. Wong and I. Levy and L. Alvisi and A. Clement and M. Dahlin}, 
 title = {Regret-freedom isnt free}, 
 institution = {Computer Science Department, University of Texas at Austin}, 
 year = 2011 , 
 number = {TR-11-20}, 
 month = {May}, 
 pdf = "http://www.cs.utexas.edu/users/dahlin/papers/bar-no-regret-tr.pdf", 
 category = "recent,byz" 
 }