| AGILE'09 | - 12th International Conference on GIScience (Hanover, Germany) |
| CLBDD'07 | - 1st Workshop on Constraint-Based Layout of Diagrams and Documents (Sydney, Australia) |
| ISAAC'06 | - 17th International Symposium on Algorithms and Computation (Kolkata, India) |
| GD'06 | - 14th International Symposium on Graph Drawing (Karlsruhe, Germany) |