Measurement of the top-quark mass in t(t)over-bar events with dilepton final states in pp collisions at root s=7 TeV - Chatrchyan, S; Khachatryan, V; Sirunyan, A; Tumasyan, A; Adam, W; Aguilo, E; Bergauer, T; Dragicevic, M; Eroe, J; Fabjan, C; Friedl, M; Fruehwirth, R; et al. (EUROPEAN PHYSICAL JOURNAL C, 2012)