- Radio Free Europe/Radio Liberty Research Institute (RFE/RL Research Institute)33
- Hitler, Adolf5
- Burleigh, Michael3
- Kershaw, Ian3
- Shirer, William L.3
- Speer, Albert3
- Aly, Götz2
- Evans, Richard J.2
- Fritzsche, Peter2
- Haffner, Sebastian2
- Housden, Martyn2
- Knopp, Guido2
- Matthias, Erich2
- Williamson, D. G.2
- Adamec, Ludwig W.1
- Bavaj, Riccardo1
- Berend, Tibor Iván1
- Biddle, Wayne1
- Bieligk, K. Fritz1
- Bracher, Karl Dietrich1