AZIMUTHALLY-DEPENDENT X-RAY ABSORPTION NEAR EDGE STRUCTURE FOR SULPHUR ADSORBED ON NICKEL (110) D. NORMAN, C.H. RICHARDSON, D.R. WARBURTON, G. THORNTON, R. McGRATH and F. SETTE J. Phys. Colloques, 47 C8 (1986) C8-525-C8-527 DOI: 10.1051/jphyscol:1986898