2011 Annual Report

GRI Content Index Annual Report 2011

2010 Annual Report

2009 Annual Report

2008 Annual Report

2007 Annual Report

2006 Annual Report

2005 Annual Report

2004 Annual Report

2003 Annual Report

Amendment to Items 2, 3 and 4 of the disclosure on corporate governance in the 2003 Annual Report

(only available in German)

2002 Annual Report

Media / Financial analysts' conference 22/03/2013

Financial analysts' conference on 23 March 2012

Financial analysts' conference on 29 March 2011

Financial analysts' conference on 30 March 2010