diff --git a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/04.reference-frames-coordinate-systems/coordinates-systems/cylindrical/cheatsheet.fr.md b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/04.reference-frames-coordinate-systems/coordinates-systems/cylindrical/cheatsheet.fr.md
index d3e64bdff..2d82273e3 100644
--- a/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/04.reference-frames-coordinate-systems/coordinates-systems/cylindrical/cheatsheet.fr.md
+++ b/00.brainstorming-pedagogical-teams/40.collection-existing-pedagogical-content/04.reference-frames-coordinate-systems/coordinates-systems/cylindrical/cheatsheet.fr.md
@@ -6,6 +6,10 @@ visible: false
 
 <!--MétaD : INSAT-TR_-->
 
+!!!! Cours en construction !
+!!!! Imparfiat, incomplet
+!!!! Ne pas publier, ne pas mettre visible
+
 #### Que sont les coordonnées cylindriques ?
 
 * 3 coordonnées *spatiales* : **$`\mathbf{\rho\;,\;\varphi\;,\;z}`$**