Searching for intrinsic charm in the proton at the LHC V.A. Bednyakov, M.A. Demichev, G.I. Lykasov, T. Stavreva and M. Stockton EPJ Web of Conferences, 60 (2013) 20047 Published online: 26 November 2013 DOI: 10.1051/epjconf/20136020047