diff --git a/presentation.pdf b/presentation.pdf
index b95cf83..5c2a9c4 100644
Binary files a/presentation.pdf and b/presentation.pdf differ
diff --git a/presentation.tex b/presentation.tex
index 39cc63f..f8de259 100644
--- a/presentation.tex
+++ b/presentation.tex
@@ -543,6 +543,7 @@ Webseiten zum Thema:
 \url{https://www.guballa.de/substitution-solver}
 \url{https://www.dcode.fr/en}
 \url{https://hackaday.com/2017/08/22/the-enigma-enigma-how-the-enigma-machine-worked/}
+\url{https://projects.raspberrypi.org/en/projects/octapi-brute-force-enigma}
 \end{frame}