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diff --git a/GSI_2015_Doering/Doering-Mi34-GSIbericht2014.pdf b/GSI_2015_Doering/Doering-Mi34-GSIbericht2014.pdf
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diff --git a/GSI_2015_Doering/Doering-Mi34-GSIbericht2014.tex b/GSI_2015_Doering/Doering-Mi34-GSIbericht2014.tex
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--- a/GSI_2015_Doering/Doering-Mi34-GSIbericht2014.tex
+++ b/GSI_2015_Doering/Doering-Mi34-GSIbericht2014.tex
@@ -48,16 +48,21 @@ Achieving the required non-ionizing radiation hardness, the ionizing radiation h
 \begin{figure}
 \centering
 \includegraphics[width=0.5\textwidth]{Mi34Fe55LargePixel}
-\caption{Signal response to photons after a radiation dose of $10^{13}\neqcm$}
+\caption{Signal response to photons after a radiation dose of $10^{13}\neqcm$.}
 \label{fig:Mi34Fe55LargePixel}
 \end{figure}
 To test this assumption, the prototype sensor MIMOSA-34 was designed, irradiated to $10^{13}\neqcm$ and tested hereafter. The sensor provides elongated pixels with a pixel pitch between $22\mum \times 33\mum$ and $33\mum \times 66\mum$. Figure \ref{fig:Mi34Fe55LargePixel} shows the response to photons of an Fe-55-source of the largest pixel. Its charge collection efficiency is reduced by radiation damage from 34\% to 25\% for the seed pixel and from close to 100\% to 62\% for the charge of the full cluster. The signal to noise ratio, as measured with a Sr-90-$\beta$-source, decreases from 49 to 35. According to our experience with other sensors, this signal to noise ratio is sufficient to provide an excellent detection efficiency. \newline
 In conclusion, the novel process is likely to provide a tolerance to $10^{13}\neqcm$ as needed for CBM even in combination with a $33\mum \times 66\mum$ pixel pitch. Consequently, this pitch seems now limited by the need for matching a spatial resolution of $5\mum$ rather than by the radiation tolerance. The latter allows for increasing the pixel pitch of the vertex detector, which comes with significant advantages in terms of readout speed and reduced power consumption.\newline
 
 \bibliographystyle{plain}
-\bibliography{Lit}
 
+\begin{thebibliography}{9}   % Use for  1-9  references
 
+\bibitem{RESMDD2012}
+D. Doering et al., Pitch dependence of the tolerance of CMOS monolithic active pixel sensors to non-ionizing radiation, Nuclear Instruments and Methods A, \textbf{730}, 111, 2013.
 
+\bibitem{IWORID2013}
+D. Doering et al., Noise performance and ionizing radiation tolerance of CMOS Monolithic Active Pixel Sensors using the $0.18\mum$ CMOS process, Journal of Instrumentation, \textbf{9}(05) C0551, 2014.
 
+\end{thebibliography}
 \end{document}