diff --git a/src/contents/description.tsx b/src/contents/description.tsx
index 3568912022ad601a7c2facdc7d33bd7865bddbf8..267e1b1c7ade12c775fa997b0820f002d2be021d 100644
--- a/src/contents/description.tsx
+++ b/src/contents/description.tsx
@@ -205,7 +205,7 @@ export function Description() {
                                     <img src="https://ars.els-cdn.com/content/image/1-s2.0-S1773224724002156-gr3_lrg.jpg" alt="Aufnahme LNP" style={{maxHeight: "200pt"}}/> 
                                       <figcaption> 
                                       <b>Figure. </b> 
-                                      Endosomal escape vs degradation of LNP cargo at endocytosis.
+                                      Endosomal escape vs degradation of LNP cargo at endocytosis [4].
                                       </figcaption> 
                                      </figure> 
                                 </div>