R. Bellazzini, INFN
A. Capone, INFN and University of Rome La Sapienza
P. Caraveo, INAF
E. Cavazzuti, ASI
S. Ciprini, University of Perugia and ASI/INAF
S. Cutini (ASI)
M. Ercoli, ASI
D. Gasparrini (ASI)
L. Latronico, INFN
A. Morselli, INFN Roma Tor Vergata
G. Spandre, INFN
V. Vitale, INFN Roma Tor Vergata