Approach to equilibrium in a chain of nonlinear oscillators F. Fucito, F. Marchesoni, E. Marinari, G. Parisi, L. Peliti, S. Ruffo et A. VulpianiJ. Phys. France, 43 5 (1982) 707-713DOI: https://doi.org/10.1051/jphys:01982004305070700