IN-SITU STUDIES OF ELECTROCHEMICAL INTERFACES USING X-RAY RADIATION AT GRAZING ANGLES. APPLICATION TO LIQUID MERCURY L. BOSIO, R. CORTES, M. DENOZIERE et G. FOLCHER J. Phys. Colloques, 50 C7 (1989) C7-23-C7-27 DOI: 10.1051/jphyscol:1989703