E.  Miniussi, Pozzo, M., Mentes, T. O., Nino, M. A., Locatelli, A., Vesselli, E., Comelli, G., Lizzit, S., Alfe, D., and Baraldi, A., ?The competition for graphene formation on Re(0001): A complex interplay between carbon segregation, dissolution and carburisation?, Carbon, vol. 73, pp. 389?402, 2014.