• 1st GbR – Lyon (France), 1997
• 2nd GbR – Castle of Haindorf (Austria), 1999
• 3th GbR – Ischia (Italy), 2001
• 4th GbR – York (England), 2003 (LNCS, Volume 2726)
• 5th GbR – Poitiers (France), 2005 (LNCS, Volume 3434)
• 6th GbR – Alicante (Spain), 2007 (LNCS, Volume 4538)
• 7th GbR – Venice (Italy), 2009 (LNCS, Volume 5534)
• 8th GbR – Münster (Germany), 2011 (LNCS, Volume 6658)
• 9th GbR – Vienna (Austria), 2013 (LNCS, Volume 7877)
• 10th GbR – Beijing (China), 2015 (LNCS, Volume 9069)
• 11th GbR – Capri (Italy), 2017 (LNCS, Volume 10310)
• 12th GbR – Tours (France), 2019 (LNCS, Volume 11510)