NEAR-EDGE X-RAY ABSORPTION FINE-STRUCTURE STUDIES OF RING MOLECULES ADSORBED ON SINGLE CRYSTAL SURFACES M. BADER, J. HAASE, K.-H. FRANK, C. OCAL et A. PUSCHMANN J. Phys. Colloques, 47 C8 (1986) C8-491-C8-496 DOI: 10.1051/jphyscol:1986892