- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)4
- Haffner, Sebastian2
- Matthias, Erich2
- Bavaj, Riccardo1
- Brentano, Lujo1
- Breuer, Stefan1
- Bärsch, Claus-Ekkehard1
- Deutsches Institut für Zeitgeschichte1
- Falter, Jürgen W.1
- Fest, Joachim C.1
- Gafencu, Grigore1
- Geiss, Imanuel1
- Glum, Friedrich1
- Gosztonyi, Péter1
- Grotewohl, Otto1
- Hacke, Christian1
- Hacker, Jens1
- Hilger, Gustav1
- Hirsch, Kurt1
- Klessmann, Christoph1