at Amsterdam RAI on 25 Jun 2014 – 28 Jun 2014

at Holiday Inn City Centre Munich on 26 Oct 2013 – 30 Oct 2013

at Mainz on 13 Oct 2012 – 17 Oct 2012

at FrOSCon 7 on 24 Aug 2012 – 26 Aug 2012

at Hochschule Bonn-Rhein-Sieg on 19 Aug 2011 – 21 Aug 2011

at Amsterdam RAI on 18 May 2011 – 21 May 2011

at Pitcher And Piano on 19 Feb 2011 – 20 Feb 2011

at Rheingoldhalle on 10 Oct 2010 – 14 Oct 2010

at Congress Center, Karlsruhe on 15 Nov 2009 – 18 Nov 2009

at Geomatikum, University Hamburg on 12 Sep 2009 – 13 Sep 2009