@InProceedings{wong11regret, 
author = {E. Wong and I. Levy and L. Alvisi and A. Clement and M. Dahlin}, 
 title = {Regret-freedom isnt free}, 
 booktitle = {15th International Conference on Principles of Distributed Systems (OPODIS 2011 )}, 
 year = 2011 , 
 month = Dec, 
 category = "recent,byz" 
 }