| SYMPOSIA | |
| 1992 | 1st International Sculpture Symposium in Vorno, Italy |
| 1993 | International Painting and Sculpture Symposium, Gap, France |
| 1996 | 9th International Sculpture Symposium in Teulada, Sardinia, Italy |
| 1998 | 5th International Monumental Sculpture Symposium, Yuzi Paradise Park, Guilin, China |
| 1999 | Woodcarving Symposium on the Rigi, Switzerland |
| 2000 | International Granite Sculpture Symposium, Ben Amira, Mauritania |
| 2000 | Woodcarving Symposium on the Uetliberg for the Mädchenhaus, Zürich, Switzerland |
| 2001 | 5. International Granite Sculpture Symposium, Laongo, Burkina Faso |
| 2003 | 5. International Sculpture Symposium in Hualien, Taiwan |
| 2005 | 8. International Symposium in Icheon, South Korea |
| 2005 | Andres Institute of Art, Brookline, New Hampshire, USA |