Florian Kerschbaumer is Project Manager at the Danube University Krems and Lecturer at the University of Klagenfurt, Austria. Linda von Keyserlingk-Rehbein is Curator and Head of the Document Department in the Military History Museum, Dresden, Germany. Martin Stark is Senior Researcher at the ILS- Research Institute for Regional and Urban Development, Dortmund, Germany. Marten Düring is Assistant Professor/Senior Research Scientist at the Luxembourg Centre for Contemporary and Digital History (C²DH) at the University of Luxembourg.