Newsroom
April 05, 2012
greentravel
April 03, 2012
Handelsblatt
January 16, 2012
Der Aktionär
January 09, 2012
22. Dezember 2011
Frankfurter Allgemeine Zeitung
January 09, 2012
22. Dezember 2011
Financial Times Deutschland
January 09, 2012
14. Dezember 2011
Bild.de
January 09, 2012
13. November 2011
Welt am Sonntag
January 09, 2012
22. August 2011
Berliner Rundfunk 91,4
January 09, 2012
6. September 2011
Focus.de
February 28, 2008