Title: Geheim!
First published: 2004
Subjects: Conscript labor, Defense industries, Forced labor, History, Interessengemeinschaft Farbenindustrie Aktiengesellschaft, Niedersachswerfen (Concentration camp), Wirtschaftliche Forschungsgesellschaft, World War, 1939-1945
Places: Germany, Germany) Nordhausen (Thuringia, Nordhausen (Thuringia, Germany), Thuringia