--- a/dup.rst	Wed Dec 14 15:21:58 2011 +0200
+++ b/dup.rst	Wed Dec 14 18:46:20 2011 +0200
@@ -10,6 +10,8 @@
 
   http://en.wikipedia.org/wiki/Duplicate_code
                 wiki page
+  http://students.cis.uab.edu/tairasr/clones/literature/
+                Code Clones Literature
 
 Search for duplicate files.
 ===========================