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\section*{Abstract}
In this work...

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\section*{Kurzfassung}
In dieser Arbeit...

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% George Box
% https://en.wikipedia.org/wiki/All_models_are_wrong

\blockquote[George Box (1987)]{
% "Remember that all models are wrong; the practical question is how wrong do they have to be to not be useful."
\ldots all models are approximations. Essentially, all models are wrong, but some are useful. However, the approximate nature of the model must always be borne in mind. \ldots
}

\blockquote[George Box]{The most that can be expected from any model is that it can supply a useful approximation to reality: All models are wrong; some models are useful
}

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