 Historian Volker Ullrich proclaimed in the weekly Die Zeit that the notion of the company's being "a resistance publisher" was clearly baseless.The files of the IHC have been publicly available in the company archives of Bertelsmann in Gütersloh since 2003.In October 2002 the Bertelsmann conglomerate publicly expressed regret for its "conduct under the Nazis, and for later efforts to cover it up".