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| 2001/2002, EXPO 02 "Pavillon Fribourgeois", Freiburg, Switzerland |
| 2003/2004, Opfikon, Switzerland |
| 2003-2006, "Controversy - Siegfried Head", University of Vienna, Austria |
| 2005, ArchitecturCongress, Münster, Germany |
| 2011, "kaleidoscope", Vienna, Austria |
| 2007/2008, La Joconde, Quebec, Canada |
| 2009, Wall, Vienna, Austria |
| 2003, Exhibition "point of departure", Ein-hod, Israel |
| 2005/2006, Métamorphose, Laval, France |