tipa -- 3/29/2007

A new method of determining the initial size and Lorentz factor of gamma-ray burst fireballs using a thermal emission component

• Authors: Asaf Pe'er, Felix Ryde, Ralph A.M.J. Wijers, Peter Mészáros, Martin J. Rees

Cosmic ray composition at high energies: Results from the TRACER project

• Authors: P.J. Boyle, M. Ave, F. Gahbauer, C. Hoeppner, J. Hoerandel, M. Ichimura, D. Mueller, A. Romero-Wolf