diff --git a/README.md b/README.md
index 3e658a6..5bc5f85 100644
--- a/README.md
+++ b/README.md
@@ -3,4 +3,4 @@ Bellman search utility for Game Of Life with windows support.
 
 To use BellmanReport.py place the script into golly scirpt folder together with bellman.exe. 
 
-For general information and introduction on bellman usage take a look at the [original bellman documentation](http://sourceforge.net/projects/bellman/files/?source=navbar)
+For general information and introduction on bellman usage take a look at the [original bellman documentation](https://github.com/rokicki/lifecontent/blob/master/bellman/bellman-B-2014-08-02.pdf)