diff --git a/parts/intro.tex b/parts/intro.tex
index 6e0cd34..d7a1f73 100644
--- a/parts/intro.tex
+++ b/parts/intro.tex
@@ -1,8 +1,14 @@
 %! TEX root = ../thesis.tex
 
+
 \chapter{Introduction}
 
-\section{What is this about?}
+\section{What is the BrainScale System?}
+
+The BrainScaleS Wafer System, developed and used in the electronic visions Group at Heidelberg University is a neuromorhic hardware implementation.
+
+For this Thesis important core components, inside the System, are the mixed-signal ASICs, named HICANNs (on Wafer in fig. \ref{wss}), and FPGAs for controlling these HICANNs \cite{hbpguidebook-brainscales}
+
 
 \section{What's the PowerIt Subsystem?}
 
diff --git a/thesis.tex b/thesis.tex
index ee5c019..0c657b9 100644
--- a/thesis.tex
+++ b/thesis.tex
@@ -24,4 +24,7 @@
     \include{parts/experiments}
     \include{parts/results}
     \include{parts/outlook}
+
+    \bibliographystyle{ieeetr}
+    \bibliography{ubib/ubib}{}
 \end{document}