diff --git a/README.md b/README.md
index 599e29c6a6b8e764ce8a58430dd1111a8aaed2e4..7cdc2014903f144b396c6cf5f351dcd575539f1e 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,7 @@
 This project contains original assets, presnetations and source code for MV3500 Networked Graphics course.
 
-NPS CLE Sakai site is on intranet at https://cle.nps.edu
+
+References:
+* [NPS CLE Sakai site](https://cle.nps.edu) for MV3500 course
+* [Netbeans](http://www.netbeans.org)
+* [GitLab Flavored Markdown (GFM)](https://docs.gitlab.com/ee/user/markdown.html)