@InProceedings{jain05tier, 
author = {N. Jain and M. Dahlin and R. Tewari}, 
 title = {TAPER: Tiered Approach for Eliminating Redundancy in Replicas }, 
 booktitle = {USENIX Conference onf File and Storage Technologies (FAST05)}, 
 year = 2005 , 
 month = {Dec}, 
 pdf = "http://www.cs.utexas.edu/users/dahlin/papers/2005-fast-TAPER.pdf", 
 category = "WANrepl" 
 }