18-20 July 2008, Lleida (Spain) 05-06 July 2008, Wroclaw (Poland) 06-08 June 2008, London (England) 09-11 May 2008, Thessaloniki (Greece) 20-22 July 2007, Padova (Italy) 10-12 November 2006, Rio De Janeiro (Brasil) 22-24 September 2006, Oakland (USA) 15-17 September 2006, Chicago (USA) 01-02 July 2006, Winterthur (Switzerland) 01-02 October 2005, Mexico City (Mexico) 01-03 July 2005, Winterthur (Switzerland) 06-08 May 2005, Zagreb (Croatia)