1. E. Fermi, J. Pasta, S. Ulam, Los Alamos Report LA-1940, 1955; later published in: E. Sergé (Ed.), Collected Papers of Enrico Fermi, Vol. II, University of Chicago Press, Chicago, 1965, p. 978; also reprinted in: A.C. Newell (Ed.), Nonlinear Wave Motion, Lecture Notes in Applied Mathematics, Vol. 15, AMC, Providence, RI, 1974; also in: D.C. Mattis (Ed.), The Many-Body Problem, World Scientific, Singapore, 1993.
2. The Fermi-Pasta-Ulam problem: Paradox turns discovery
3. Exact solutions in the FPU oscillator chain
4. Interaction of "Solitons" in a Collisionless Plasma and the Recurrence of Initial States