diff --git a/README.md b/README.md
index ee5ce5a..adf9841 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,9 @@ Random number generator of statistical distributions.
 
 Demo: [http://ml.codinglabs.org/v/distributions.html](http://ml.codinglabs.org/v/distributions.html)
 
-## How to Use
+Algorithm reference: [http://ftp.arl.mil/random/random.pdf](http://ftp.arl.mil/random/random.pdf)
+
+## Quick Start
 ### Browsers
 
     <script type="text/javascript" src="/path/to/random.js"></script>