Thanks also to my family, who supported me in so many ways that I will not
list them out of fear of forgetting something; to all my friends for motivation,
distraction and encouragement; and to myself for finally finding the willpower
to push this through – driven by deadlines as usual.
Special thanks to Sonja Reitinger for tangible and intangible support – e.g.
in the form of letting me use her notebook to finish this thesis in bed.