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\addcontentsline{toc}{chapter}{Acknowledgements}
\chapter*{Acknowledgements}

I would like to thank Simon Van Mierlo for his excellent guidance, review and feedback of this thesis. I would also like to thank my promotor, Hans Vangheluwe for giving me the chance to re-enroll at university after dropping out a couple of years ago. And naturally, I thank family and friends for their support.