diff --git a/doc/erd-dsl.md b/doc/erd-dsl.md
index 40ed7db..d13c1b0 100644
--- a/doc/erd-dsl.md
+++ b/doc/erd-dsl.md
@@ -55,3 +55,7 @@ relationships:
         max: n
     properties: []
 ```
+
+## References
+
+* [Petit cours de Modélisation, Christophe DARMANGEAT](http://pise.info/modelisation/)