March 20, 2014 (German)
Pilgerindustrie, Mekka
By Claus Hecking, Capital, Germany
June 22, 2012 (English)
Radio interview by Ebrahim Moosa, CII, South Africa
June 01, 2012 (English)
TV broadcast by Nursha Ismail, MediaCorp, Singapore
May 27, 2012 (English)
By Siobhan Dowling, Global Post, USA
April 18, 2012 (German)
By Verena Mönch, Wirtschaftsförderung Region Stuttgart, Germany
February 13, 2012 (English)
By Thomas Ramge, The Economist, UK
February 11, 2012 (German)
By Prof. Dr. Volker Coors, Hochschule für Technik Stuttgart, Germany
February 02, 2012 (German)
By Eva-Maria Manz, Stuttgarter Zeitung, Germany
January 18, 2012 (German)
By Stuttgarter Nachrichten, Germany