diff --git a/content/zettels/brushless_dc_motor.md b/content/zettels/brushless_dc_motor.md
index e466e61..6162dfa 100644
--- a/content/zettels/brushless_dc_motor.md
+++ b/content/zettels/brushless_dc_motor.md
@@ -8,6 +8,11 @@ Tags
 :
 
 
+## Control of Brushless motors {#control-of-brushless-motors}
+
+<https://fr.mathworks.com/videos/series/brushless-dc-motors.html>
+
+
 ## Manufacturers {#manufacturers}
 
 | Manufacturers                                                                              | Country |