International Schools

1. Sep 12, - Sep 16, 2005, ``Gamma-Ray Bursts: from Astrophysics to Cosmology'', (International School of Space Science), at Scuola Superiore "Guglielmo Reiss Romoli", L'Aquila (Italy).
2. Aug 30, - Sep 7, 2001, ``Astroparticle and Gamma-ray Physics in Space'', (International School of Space Science), at Scuola Superiore "Guglielmo Reiss Romoli", L'Aquila (Italy).
3. Dec 26, 2000 - Jan 6, 2001, ``Cosmic Explosions: Gamma-Ray Bursts and Related Phenomena'' (18th Jerusalem Winter School in Theoretical Physics), ``The Hebrew University of Jerusalem'', Jerusalem.