Measurement of forward tt, W + bb and W + cc production in pp collisions at √s = 8 TeV - Aaij, R; Adeva, B; Adinolfi, M; Evans, T; Gandini, P; Gruberg Cazon, B; Hadavizadeh, T; Harnew, N; Hill, D; Jalocha, P; John, M; Jurik, N; et al. (Physics Letters B, 2017)