Documentación
   
   
   Andrew Tridgell, "Efficient Algorithms for Sorting and
       Synchronization", 1999
       http://samba.org/~tridge/phd_thesis.pdf
   
   How Rsync Works
       http://samba.org/rsync/how-rsync-works.html
   
   The rsync algorithm
       http://samba.org/rsync/tech_report/
   
   Conferencia, Ottawa Linux Symposium, julio 2000
       http://olstrans.sourceforge.net/release/OLS2000-rsync/
       OLS2000-rsync.html