@PhdThesis{zheng08URA, 
author = {J. Zheng}, 
 title = {URA: A Universal Data Replication Architecture}, 
 school = {Universiy of Texas}, 
 year = 2008 , 
 month = Aug, 
 pdf = "ftp://ftp.cs.utexas.edu/pub/techreports/tr08-35.pdf", 
 category = "PRACTI,WANrepl,webos,c0pe", 
 }