Altona Museum for Art and Cultural History, Inv.-Nr. 2021-0202,32, CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/)
Ink drawing by Alfred Bergel: View of the villa, ramparts and Hannover B IV from the "Landgut", Theresienstadt September 1944. (translated by Erwin Fink), edited in: Key Documents of German-Jewish History, <https://keydocuments.net/source/jgo:source-296> [October 28, 2025].
