Correlated Chemical and Positional Fluctuations in the Gold-Nickel System: a Synchrotron X-Ray Diffuse Scattering Study G. Renaud, M. Belakhovsky, S. Lefebvre et M. Bessière J. Phys. III France, 5 9 (1995) 1391-1405 DOI: 10.1051/jp3:1995199