ELECTRONIC PROPERTIES OF COPPER AND SILVER ADSORBATES ON METALLIC SURFACES, STUDIED BY SURFACE REFLECTANCE SPECTROSCOPY Y. Borensztein, T. López-Ríos and G. Vuye J. Phys. Colloques, 45 C5 (1984) C5-455-C5-459 DOI: 10.1051/jphyscol:1984568