Y. Suchorski, W.A. Schmidt and J.H. Block: Local electric fields above individual surface atoms in the presence of field-adsorbed rare gas atoms: an additional field enhancement. Applied Surface Science76-77, 101–107 (1994).
W.A. Schmidt and N. Ernst: On the binding strength of surface metal atoms in a high electric field—face-specific appearance energy measurements of field evaporated rhodium ions. Vacuum45 (2-3), 255–258 (1994).
Y. Suchorski, W.A. Schmidt, J.H. Block and H.J. Kreuzer: Comparative studies on field ionization at surface sites of Rh, Ag and Au—differences in local electric field enhancement. Vacuum45 (2-3), 259–262 (1994).