diff --git a/examples/example-hegel.md b/examples/example-hegel.md
index ead075c..53b8324 100644
--- a/examples/example-hegel.md
+++ b/examples/example-hegel.md
@@ -38,11 +38,11 @@ theme : hegel
![bg left:33% hue-rotate:355deg](https://upload.wikimedia.org/wikipedia/commons/0/08/Hegel_portrait_by_Schlesinger_1831.jpg)
-
Graph Algebra and Formally Defined Programs in Z
-Using Haskell to Reason and Verify Programs
-Leonard Kleinrock
-01.jan.2022
-Formal Methods International Congress
+Phänomenologie des Geistes
+Wissenschaft von der Erfahrung des Bewusstseins
+Georg Wilhelm Friedrich Hegel
+Bamberg und Würzburg, 1807
+Akademie Verlag
@@ -50,11 +50,11 @@ theme : hegel
-# Graph Algebra Representation of Formally Defined Programs in Z
-## Using Haskell to Reason and Verify Programs
-### Leonard Kleinrock
-#### 01.jan.2022
-##### Formal Methods International Congress
+# Phänomenologie des Geistes
+## Wissenschaft von der Erfahrung des Bewusstseins
+### Georg Wilhelm Friedrich Hegel
+#### Bamberg und Würzburg, 1807
+##### Akademie Verlag
---
diff --git a/examples/example-hegel.pdf b/examples/example-hegel.pdf
index 0ff59d1..9e54534 100644
Binary files a/examples/example-hegel.pdf and b/examples/example-hegel.pdf differ
diff --git a/img/hegel.png b/img/hegel.png
index 521415b..a53f2a8 100644
Binary files a/img/hegel.png and b/img/hegel.png differ