diff --git a/README.md b/README.md
index 65fb780517422775523ee97394b2c2349e6ca7d3..0aea4440d237734959bfe4a20fe816db87b6c81f 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,8 @@ The classification "algorithm" is described here:
 
 https://gitlab.mpcdf.mpg.de/nomad-lab/normalizer-prototypes/wikis/info-on-classification-by-prototypes
 
+More information on the normalization of classifiaction by prototypes one may find here:
+https://gitlab.mpcdf.mpg.de/nomad-lab/normalizer-prototypes/wikis/normalization-of-classification-by-prototypes
 
 All the prototypes as included in `structure_types.py` are updated in their main location from where one can import them: