| Title | Year | Description |
|---|---|---|
| 4013 | 2002 |
|
| 4140 | 1999 |
|
| 6226 | 2000 |
|
| W-90-10-03, Nürnberg | 1990 |
|
| W-90-10-05, Nürnberg | 1990 |
|
| W-91-03-05, Paris | 1991 |
|
| W-92-03-06, Hildesheim | 1992 |
|
| W-92-08-02, Mönchengladbach | 1992 |
|
Courtesy Mai 36 Galerie, Zürich