1992 (2. October)
1993 (11. September)
2001 (9.-10. August)
2005 (5.-7. Mai)


2005 (3.-9. Nov.)
2007 (26.-27. May)
2007 (24.-25. August)
2008 (5.-7. Sept.)


2008 (7. November)
2009 (11.-13. June)