2016 Padua, Italia
2015, November, Brussels



2014, November, Berlin
2013, October, Bratislava
2012, October, Bordeaux
2011, September, Copenhagen
2010, June, Haarlem 
2009, May, Prague 
2008, May, Prague 
2007, May, Prague
2006, June, Leipzig
2005, May, Prague.
2004, Sept., Bratislava