the group exhibitions
The most important group exhibitions since 1972
| 1972 | Kassel, Documenta 5 |
| 1978 | Venice, Biennale |
| 1980 | New York, Museum of Modern Art |
| 1997 | Lyon, Biennale Kwangjiu (Korea), Biennale |
| 1999 | Venice, Biennale Fondation Beyeler, "Face to Face to cyberspace" |
| 2000 | Aarau, The memory of painting, Aargauer Kunsthaus |
| 2002 | Lugano, L'immagine ritrovata, Museo Cantonale d'Arte |
| 2003 | Venice, Biennale Strasbourg, Hyperréalisme USA 1965-75, Musée des Beaux Arts |


















