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| 2011 | Rome, Casa dell'Architettura dell'Acquario Romano |
| 2010 | Moskow, Architektur Biennale Moskau |
| 2007 | Kassel, KAZ im KUBA: architectdocuments |
| 2006 | Shanghai, Light+Building: The architects collection |
| 2005 | Cologne, Vitra Showroom |
| | Bahrain, Intelligent Building Middle East |
| | Munich, Bau 2005: Makro-Architektur |
| | Berlin, Aedes: Handelsarchitektur NRW |
| 2004 | Cologne, Orgatec: Objektive |
| | Cologne, Passagen: m.a.d. |
| 2003 | Bonn, Bundeshaus: artib |
| 2002 | Berlin, UIA-Kongress/plancom: PRO-day |
| | Frankfurt, Light+Building: PRO-day |
| 2000 | Cologne, Orgatec: o.a.s.e. New Work Architecture |
| | Cologne, plan2000: FrauenMediaTurm |
| 1999 | Cologne, plan99: Galerie Holtmann |
| 1998 | Berlin, Aedes |
| 1996 | Cologne, Buchhandlung König |
| 1993 | Cologne, Kölner Wirtschaftsbauten |
| 1992 | Cologne, Kölner Bauideen |
| 1991 | Venice, 5th Biennale of Architecture |
| 1990 | Paris, 3ième Salon international de l‘architecture |
| | Leipzig, Ideen-Orte-Projekte |
| 1989 | Köln, Design in Köln |
| 1988 | Cologne, Internationales Industriebau-Symposium |
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