Electron field emission from cluster-assembled carbon thin filmsA. C. Ferrari, B. S. Satyanarayana, J. Robertson, W. I. Milne, E. Barborini, P. Piseri and P. MilaniEurophys. Lett., 46 2 (1999) 245-250DOI: https://doi.org/10.1209/epl/i1999-00251-7