diff --git a/latex/bibliography.bib b/latex/bibliography.bib
index d04fa1f..2e5848f 100644
--- a/latex/bibliography.bib
+++ b/latex/bibliography.bib
@@ -8,3 +8,11 @@
   address = {Berlin, Heidelberg},
 }
 
+@misc{bin-packing-approximation:2022,
+  author = {{Computational Thinking}},
+  title = {Bin Packing Approximation},
+  year = {2022},
+  howpublished = {YouTube video},
+  url = {https://www.youtube.com/watch?v=R76aAh_li50},
+}
+
diff --git a/latex/content.tex b/latex/content.tex
index 5f6dd55..349c337 100644
--- a/latex/content.tex
+++ b/latex/content.tex
@@ -53,5 +53,7 @@ and performance, both in resource consumption and in box usage.
 
 \subsection{Optimal algorithm}
 
+\cite{bin-packing-approximation:2022}
+
 \sectionnn{Conclusion}