Conductivity of ultrathin Pb films during growth on Si(111) at low temperatures O. Pfennigstorf, A. Petkova, Z. Kallassy and M. Henzler Eur. Phys. J. B, 30 1 (2002) 111-115 Published online: 19 November 2002 DOI: 10.1140/epjb/e2002-00364-9