diff --git a/thesis/Abschlussarbeit.tex b/thesis/Abschlussarbeit.tex
index 5a46189..6d753f8 100644
--- a/thesis/Abschlussarbeit.tex
+++ b/thesis/Abschlussarbeit.tex
@@ -12,6 +12,7 @@ listof=totoc,
 
 \begin{document}
 \include{macros.tex}
+\include{citation.bib}
 	
 \thispagestyle{empty}
 
@@ -76,7 +77,9 @@ abstract
 
 %Hauptteil der Arbeit 
 
-\section{}
+\section{Introduction}
+
+\cite{brendel_provable_2021}
 
 \subsection{}
 
@@ -84,8 +87,8 @@ abstract
 \newpage
 
 \addcontentsline{toc}{section}{References}
-% \bibliography{}
-
+\bibliographystyle{ieeetr}
+\bibliography{cryptobib/crypto.bib,citation.bib}
 
 \newpage\
 
diff --git a/thesis/citation.bib b/thesis/citation.bib
new file mode 100644
index 0000000..6e87646
--- /dev/null
+++ b/thesis/citation.bib
@@ -0,0 +1,19 @@
+
+@inproceedings{brendel_provable_2021,
+	address = {San Francisco, CA, USA},
+	title = {The {Provable} {Security} of {Ed25519}: {Theory} and {Practice}},
+	isbn = {978-1-72818-934-5},
+	shorttitle = {The {Provable} {Security} of {Ed25519}},
+	url = {https://ieeexplore.ieee.org/document/9519456/},
+	doi = {10.1109/SP40001.2021.00042},
+	abstract = {A standard requirement for a signature scheme is that it is existentially unforgeable under chosen message attacks (EUF-CMA), alongside other properties of interest such as strong unforgeability (SUF-CMA), and resilience against key substitution attacks.},
+	language = {en},
+	urldate = {2023-02-16},
+	booktitle = {2021 {IEEE} {Symposium} on {Security} and {Privacy} ({SP})},
+	publisher = {IEEE},
+	author = {Brendel, Jacqueline and Cremers, Cas and Jackson, Dennis and Zhao, Mang},
+	month = may,
+	year = {2021},
+	pages = {1659--1676},
+	file = {Brendel et al. - 2021 - The Provable Security of Ed25519 Theory and Pract.pdf:/home/rixxc/Zotero/storage/6I9NJFIX/Brendel et al. - 2021 - The Provable Security of Ed25519 Theory and Pract.pdf:application/pdf},
+}