1. Proceedings of the Steklov Institute of Mathematics, No. 90 (1967);Anosov, D. V.,1969
2. Instability of dynamical systems with many degrees of freedom;Arnol′d, V. I.;Dokl. Akad. Nauk SSSR,1964
3. Proof of a theorem of A. N. Kolmogorov on the preservation of conditionally periodic motions under a small perturbation of the Hamiltonian;Arnol′d, V. I.;Uspehi Mat. Nauk,1963
4. Encyclopaedia of Mathematical Sciences,1993
5. The discrete Frenkel-Kontorova model and its extensions. I. Exact results for the ground-states;Aubry, S.;Phys. D,1983