| Fourth Zürich School of Crystallography |
2011 |
| Third Zürich School of Crystallography |
2009 |
| Second Zürich School of Crystallography |
2008 |
| First Zürich School of Crystallography |
2007 |
| Nineteenth Congress and General Assembly of the IUCr |
2002 |
| Aperiodic '94 |
1994 |
Switzerland