diff --git a/_pages/datamodels.md b/_pages/datamodels.md
index cda8597..ee8e4bc 100644
--- a/_pages/datamodels.md
+++ b/_pages/datamodels.md
@@ -11,6 +11,8 @@ MISP is not only a software but also a series of data models created by the MISP
 
 The MISP core format is a simple JSON format used by MISP and other tools to exchange events and attributes. The JSON schema 2.4 is described on the MISP core software and many sample files are available in the OSINT feed.
 
+The MISP format is described as Internet-Draft in [misp-rfc](https://github.com/MISP/MISP-rfc). The MISP format are described to support the developer or organisation willing to build your own tool supporting the MISP format (as import or export). The standard is built from practical use-cases and the implementation references within the MISP project. The standard is quickly evolving following the MISP implementation.
+
 ### MISP default attributes and categories
 
 ### Attribute Categories vs Types