Tagliaferri G., L.A. Antonelli, G. Chincarini, A. Fernández-Soto, D. Malesani, M.D. Valle, P. D'Avanzo, A. Grazian, V. Testa, S. Campana, and S. Covino, Astronomy And Astrophysics 443, L1 - L5 (2005).
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