A generalization was presented of the local mean-field approach to the study of diffusion in a dense system in which the particles were mobile. The present model reduced, between well-defined limits, to lattice-gas and fluid models which had been proposed for adsorbate diffusion on a metal surface.

Z.W.Gortel, M.A.Zaluska-Kotur, L.A.Turski: Physical Review B, 1995, 52[23], 16916-9