diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..95c0c21
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+*.aux
+*.backup
+*~
diff --git a/cel-thesis.cls b/cel-thesis.cls
index e0854ca..67f702d 100644
--- a/cel-thesis.cls
+++ b/cel-thesis.cls
@@ -28,7 +28,7 @@
 \newcommand{\thesisEndDate}[1]{\def \theThesisEndDate{#1}}
 \newcommand{\thesisSignatureDate}[1]{\def \theThesisSignatureDate{#1}}
 \newcommand{\thesisLanguage}[1]{\def \theThesisLanguage{#1}}
-
+\newcommand{\thesisCC}[1]{\def \theThesisCC{#1}}
 % Defaults
 \thesisTitle{Random Thesis Title}
 \thesisType{Master Thesis Type}
@@ -39,9 +39,13 @@
 \thesisEndDate{dd.mm.yyyy}
 \thesisSignatureDate{dd.mm.yyyy}
 \thesisLanguage{english}
+\thesisCC{FALSE}
 
 \def\dictThesisLanguageGerman{ngerman}
 \def\dictThesisLanguageEnglish{english}
+\def\dictThesisFALSE{FALSE}
+\def\dictThesisTRUE{TRUE}
+
 
 % Gerneral %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \usepackage[T1]{fontenc}  % encoding for target files.
@@ -174,6 +178,9 @@
 }
 \newcommand{\ssection}[1]{\vspace*{0.8em}{\textbf{#1}}\\}
 
+\def\makestatutorydeclaration{
+  \include{cel-thesis/eidesstattliche_erklaerung}
+}
 
 \def\maketitle{
     \hypersetup{
@@ -208,7 +215,7 @@
     \end{center}
     \hspace*{\fill}
     \newpage
-    \include{cel-thesis/eidesstattliche_erklaerung}
+    \makestatutorydeclaration
 }
 
 
diff --git a/eidesstattliche_erklaerung.tex b/eidesstattliche_erklaerung.tex
index c9724b3..86c1592 100644
--- a/eidesstattliche_erklaerung.tex
+++ b/eidesstattliche_erklaerung.tex
@@ -17,3 +17,13 @@ Ich versichere hiermit, dass ich die vorliegende Arbeit selbst{\"a}ndig und unte
 %\>Amalienstra{\ss}e 79\\
 %\>76133 Karlsruhe\\[1ex]
 \end{tabbing}
+
+\ifx\theThesisCC\dictThesisTRUE
+\newpage
+\begin{center}
+ \includegraphics[width=25mm,valign=c]{cel-thesis/logos/cc-by-sa}
+\end{center}
+
+\vspace{1cm}
+This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by-sa/4.0/.
+\fi
\ No newline at end of file
diff --git a/logos/cc-by-sa.png b/logos/cc-by-sa.png
new file mode 100644
index 0000000..8770732
Binary files /dev/null and b/logos/cc-by-sa.png differ