| Verfasser | Häufigkeit |
| Main Commission for the Investigation of Crimes against the Polish Nation - The Institute of National Memory |
4 |
| Juskiewicz, Ryszard |
1 |
| The Institute of National Memory |
1 |
| The Main Commission for the Investigation of Crimes Against the Polish Nation / The Institute of National Memory |
1 |
| The Main Commission for the Investigation of Crimes against the Polish Nation |
1 |
| The Polish Society for the Righteous among the Nations |
1 |
| The Polish Society for the righteous among the nations |
1 |
