The importance of muon information on primary mass discrimination of ultra-high energy cosmic rays - Supanitsky, D; Tiba, A; Medina Tanco, Gustavo Adolfo; Etchegoyen, A; Allekotte, I; Berriso, M. Gómez; Souza, Vitor de; Medina, C; Ortiz, J. A; Shellard, R (International Cosmic Ray Conference, 2005)