at Conference centre Hypo Expo XXI on 27 Oct 2016 – 29 Oct 2016

at Golden Tulip on 12 Oct 2015 – 16 Oct 2015

at Umweltforum Auferstehungskirche on 21 Nov 2012 – 24 Nov 2012

at Cité Universitaire Internationale on 5 Jun 2012 – 9 Jun 2012