[ADD] makefile and bibliography

doc/developer/designDocuments/Makefile

+all:
+	pdflatex openWalnutDesign
+	pdflatex openWalnutDesign
+	bibtex openWalnutDesign
+	bibtex openWalnutDesign
+	pdflatex openWalnutDesign
+	pdflatex openWalnutDesign
+	cp openWalnutDesign.pdf openWalnutDesignDocument.pdf
+clean:
+	rm openWalnutDesign.aux openWalnutDesign.log openWalnutDesign.out openWalnutDesign.toc openWalnutDesign.bbl openWalnutDesign.blg openWalnutDesign.pdf openWalnutDesignDocument.pdf

doc/developer/designDocuments/openWalnutDesign.tex

@@ -66,6 +66,8 @@ section stem from the following website:
   \includegraphics[width=\textwidth]{WValue_hierachy}
   \caption{The class hierarchy describing high-level values in OpenWalnut.}
 \end{figure}
+\section{Literature}
+For a general overview on visualization in medicine \cite{Preim:2007:VMT} can be recommended.
 
 \chapter{GUI}
 The GUI module is the only part where we allow gui-toolkit related code. For example, this means that the use of any QT class is
@@ -122,6 +124,6 @@ myValuePointer = getValuesPointer<float *>()
 \begin{itemize}
 \item Data can not be manipulated!
 \end{itemize}
- 
 
+\bibliography{../../books}
 \end{document}