(2025). 'Einführende Worte' In C. Hugo Hoffmann, S. Grell, & M. Otto (Eds.), Was tun? Wie Freiheitsentrepreneure unser Zusammenleben revolutionieren (1st ed., pp. 11-14)
. "Einführende Worte". Was tun? Wie Freiheitsentrepreneure unser Zusammenleben revolutionieren, edited by Christian Hugo Hoffmann, Sebastian Grell and Marc-Felix Otto, Edition Wissenschaft & Praxis, 2025, pp. 11-14.
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