diff --git a/docs/changelog.md b/docs/changelog.md
index fb23a4178..1404407aa 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -98,6 +98,9 @@ All notable changes to GNSS-SDR will be documented in this file.
   options.
 - Fix building when using UHD v4.0.0.0.
 
+See the definitions of concepts and metrics at
+https://gnss-sdr.org/design-forces/
+
  
 
 ## [GNSS-SDR v0.0.14](https://github.com/gnss-sdr/gnss-sdr/releases/tag/v0.0.14) - 2021-01-08
@@ -204,6 +207,9 @@ All notable changes to GNSS-SDR will be documented in this file.
   `.dat` binary file is also delivered in `.mat` format, which is readable from
   Matlab and Python.
 
+See the definitions of concepts and metrics at
+https://gnss-sdr.org/design-forces/
+
  
 
 ## [GNSS-SDR v0.0.13](https://github.com/gnss-sdr/gnss-sdr/releases/tag/v0.0.13) - 2020-07-29