Between Persecution and Participation: Biography of a Bookkeeper at J. A. Topf & Söhne (Modern Jewish History): Schüle, Annegret, Sowade, Tobias, Milbouer, Penny: 9780815636168: Amazon.com: Books
When business helped a genocide - JusticeInfo.net
Topf and Sons - Wikipedia
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Erinnerungsort Topf & Söhne – Die Ofenbauer von Auschwitz, Erfurt - Iconic World