O. Adriani – 1, 2
M.G. Bagliesi – 3, 4
G. Bigongiari – 3 , 4
S. Bonechi – 3, 4
M. Bongi – 1, 2
P. Brogi – 3, 4
G. Castellini – 5
C. Checchia – 6, 7
G. Collazuol – 6, 7
V. Di Felice – 8, 9
T. Lomtadze – 4, 10
P. Maestro – 3,  4
P.S. Marrocchesi – 3, 4    (Italian spokesperson)
A.M. Messineo – 4, 10
N. Mori – 2
L. Pacini – 1, 2, 5
F. Palma – 8, 9
P. Papini – 2
A.V.  Penacchioni – 3, 11
S.B. Ricciarini – 2, 5
R. Sparvoli – 8, 9
P. Spillantini – 1
F. Stolzi – 3, 4

1  Department  of Physics,  University  of Florence,  Via  Sansone, 1 – 50019 Sesto, Fiorentino,  Italy
2  INFN Sezione  di  Florence,  Via  Sansone, 1 – 50019 Sesto, Fiorentino,  Italy
3  Department  of Physical  Sciences,  Earth and Environment, University  of Siena ,  via  Roma  56, 53100 Siena,  Italy
4  INFN Sezione  di  Pisa,  Polo Fibonacci,  Largo  B.  Pontecorvo,  3 – 56127 Pisa,  Italy
5  Inst.  of Applied  Physics  (IFAC), Natl.  Res.  Council  (CNR), Via  Madonna  del Piano,  10, 50019 Sesto, Fiorentino,  Italy
6  Department  of Physics  and Astronomy,  University  of Padova, Via  Marzolo,  8, 35131 Padova, Italy
7 INFN  Sezione  di  Padova, Via  Marzolo,  8, 35131 Padova, Italy
8  University  of Rome “Tor  Vergata”,  Via  della Ricerca  Scientifica  1, 00133 Rome, Italy
9  INFN  Sezione  di  Rome “Tor  Vergata”,  Via  della Ricerca  Scientifica  1, 00133 Rome, Italy
10  University  of Pisa,  Polo Fibonacci,  Largo  B.  Pontecorvo,  3 – 56127 Pisa,  Italy
11  ASI  Science  Data  Center  (ASDC), Via  del Politecnico  snc, 00133 Rome, Italy