"Digital Sovereignty in Africa", panel participation by M. Kettemann as part of the dialogue with Federal President Steinmeier and experts from 14 African countries, report by the Press Service of the Office of the Federal President, 24. June 2021, https://www.bundespraesident.de/SharedDocs/Berichte/DE/Frank-Walter-Steinmeier/2021/06/210624-Ethik-der-Digitalisierung-Gespraech-Fellows.html# (online participation).