@Article{kotla08zyzzyva, 
author = {R. Kotla and A. Clement and E. Wong and L. Alvisi and M. Dahlin}, 
 title = {{Zyzzyva:} Speculative Byzantine Fault Tolerance}, 
 journal = {Communications of the {ACM}}, 
 month = Nov, 
 year = 2008 , 
 pdf = "http://doi.acm.org/10.1145/1400214.1400236", 
 preprintpdf = "http://www.cs.utexas.edu/users/dahlin/papers/Zyzzyva-CACM.pdf", 
 code = "http://www.cs.utexas.edu/users/dahlin/papers/ZYZZYVA-1.2.3.tar.gz", 
 category = "byz,selected" 
 }