- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)16,948
- Polgári Védelem Országos Parancsnokság30
- Đorđević, Aleksandar26
- Radio Free Europe/Radio Liberty, Inc - Research Institute23
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- Csákó, Mihály15
- Karanović, Srđan10
- Soviet Red Archives10
- Medvedev, Roy Aleksandrovich9
- Medvedev, Zhores A.9
- Nóvé, Béla9
- Hegedüs, András8
- Kim, Il-sǒng8
- Tsentralnaia Studiia Dokumentalnykh Filmov (TsSDF)8
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- Broomfield, Nick7
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