III Symposium on plasma dynamics: Theory and applications, Trieste, 11-12 luglio 1994

Characteristics of flares with Ha emission protruding over major sunspot umbrae

Sun-Earth day, SOHO, 27 april 2001

JOSO: Graz X.1993, Trieste X.1994, Benešov 1995

Debrecen, 21-24 may 1990, VI European meeting on solar physics (EPS): The dynamic Sun

Polarization of fragmented solar type II radio bursts

Collaboration with Ilja Certok

V European workshop on Collisionless shock, 16-18 giugno, Parigi

Scambio di dati sui radio burst type II con Andreas Klassen

CESRA: Caputh (Potsdam), may 1994; Novan (France), june 1996; Ringberg, july 2001

Ignition of MHD shocks associated with solar flares

Waves and 3d-Plasma, workshop, november 8-10 1995, Meudon (organized by J.L. Bougeret)