From Cooperation to Complicity: Degussa in the Third Reich - Peter Hayes - Google Books

https://books.google.de/books?id=5Amej-jkAMwC

From Cooperation to Complicity is a study of the Degussa corporation, a firm which played a pivotal role in the processing of plundered precious metals in Nazi-occupied Europe and controlled the production and distribution of Zyklon B, the infamous…