November 2016: Frankfurt am Main

June 2016: Luxembourg

November 2015: Beijing and Shanghai

Mai 7, 2015: Brussels

May 9, 2014: Frankfurt am Main

 

November 10 and 16, 2013: Shanghai and Beijing

 

September 20, 2013: London

 

June 10, 2013: Frankfurt am Main

November 22, 2012: Brussels

 

September 21, 2012: London

 

May 4, 2012: Frankfurt am Main – 10th Anniversary Celebrations

October 26, 2011: Frankfurt am Main