at Hotel San Marco, Verona, Italy on 14 May 2013 – 16 May 2013

at Hotel San Marco, Verona, Italy on 15 May 2012 – 17 May 2012

at Manchester Conference Centre on 31 Aug 2011 – 4 Sep 2011

at Hotel San Marco on 10 May 2011 – 14 May 2011

at Hotel San Marco on 10 May 2011 – 12 May 2011

at Paris, France on 15 Feb 2010 – 17 Feb 2010