FLUORESCENCE YIELD NEAR EDGE STRUCTURE (FYNES) : A NOVEL TECHNIQUE FOR IN SITU SURFACE CHEMISTRY D.A. FISCHER, F. ZAERA et J.L. GLAND J. Phys. Colloques, 48 C9 (1987) C9-1097-C9-1100 DOI: 10.1051/jphyscol:19879198