1993-1999
- NATO ISI workshop Physics
and
Mathematical
Physics of the Hubbard Model, San Sebastian
1993.
- Aspen workshop on Exactly
Solvable
models
of strongly correlated electrons, Aspen 1994.
- Euroconference, Würzburg 1994.
- Euroconference, Torino 1995.
- Workshop on New
Developments with Strongly Correlated Electrons,
Copenhagen 1996.
- Workshop on New
Symmetries in Quantum Physics, Torino 1998.
- CMMP 98, UMIST Manchester 1998.
- Cooperative Phenomena
in Statistical Physics: Theory and Applications,
Dresden 1999.
- 1999 Amsterdam Summer
workshop on flux, charge, topology and statistics,
Amsterdam 1999.