--- a/dup.rst	Sat Feb 18 14:05:36 2017 +0200
+++ b/dup.rst	Sat Feb 18 15:59:23 2017 +0200
@@ -9,10 +9,12 @@
 Search for duplicate lines.
 ===========================
 
-  http://en.wikipedia.org/wiki/Duplicate_code
-                wiki page
-  http://students.cis.uab.edu/tairasr/clones/literature/
-                Code Clones Literature
+http://en.wikipedia.org/wiki/Duplicate_code
+  Wiki page.
+http://students.cis.uab.edu/tairasr/clones/literature/
+  Code Clones Literature.
+https://moz.com/devblog/near-duplicate-detection/
+  MinHash vs SimHash algorithm explanation.
 
 Open source or free licence:
 
@@ -27,6 +29,19 @@
  * http://getatomiq.com/
  * http://www.harukizaemon.com/simian/index.html
 
+http://stackoverflow.com/questions/191614/how-to-detect-code-duplication-during-development
+  How to detect code duplication during development?
+https://en.wikipedia.org/wiki/List_of_tools_for_static_code_analysis
+  List of tools for static code analysis.
+http://askubuntu.com/questions/434545/identify-duplicate-lines-in-a-file-without-deleting-them
+  Identify duplicate lines in a file without deleting them?
+http://stackoverflow.com/questions/13046791/how-to-delete-the-repeat-lines-in-emacs
+  How to delete the repeat lines in emacs.
+http://emacs.stackexchange.com/questions/13092/how-can-i-highlight-duplicate-lines
+  How can I highlight duplicate lines?
+https://www.emacswiki.org/emacs/DuplicateLines
+  Duplicate Lines.
+
 Search for duplicate files.
 ===========================