THE TRIGGER SYSTEM OF THE TOTEM EXPERIMENT AT LHC. - TURINI, NICOLA; BAGLIESI, M.; BERRETTI, M.; BOSSINI, E.; CHECCHI, R.; GRECO, V.; KOPAL, J.; OLIVERI, E.; PEDRESCHI, E.; SPINELLA, F. (Astroparticle, Particle, Space Physics & Detectors For Physics Applications - Proceedings of the 13th Icatpp Conference, 2012)