- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)205
- Soviet Red Archives3
- Daix, Pierre2
- Nóvé, Béla2
- Radio Free Europe/Radio Liberty, Inc - Research Institute2
- Robrieux, Philippe2
- Andrieu, René1
- Bortstieber, Gertrud1
- Brunet, Jean Paul1
- Bulgarian Unit1
- Bíró, András1
- Communist International (Comintern)1
- Csákó, Mihály1
- Czechoslovak Unit1
- Desanti, Dominique1
- Duclos, Jacques1
- Ekman, Alice1
- Elleinstein, Jean1
- Fauvet, Jacques1
- Fejtő, Ferenc1