- Bahro, Rudolf2
- Kautsky, Karl2
- Leonhard, Wolfgang2
- Aron, Raymond1
- Balluseck, Lothar von1
- Berdiaev, Nikolai1
- Buber-Neumann, Margarete1
- Castro, Fidel1
- Djilas, Milovan1
- Douillet, Joseph1
- Elleinstein, Jean1
- Fricke, Karl Wilhelm1
- Furet, François1
- Gehrmann, Udo1
- Grotewohl, Otto1
- Guillain, Robert1
- Görlich, Johann Wolfgang1
- Homburg, Wilhelm von1
- Koch, Hans1
- Kosinski, Jerzy1