1. Franceschini, V., Tebaldi, C.: Sequences of infinite bifurcation and turbulence in five-modes truncation of the Navier-Stokes equations. Istituto Matematico, Univ. di Modena preprint
2. Franceschini, V.: A Feigenbaum sequence of bifurcations in the Lorenz model, Istituto Matematico, Univ. di Modena preprint, to be published in J. Stat. Phys.
3. Computations by the author on Duffing's equation, following Ueda, Y.: J. Stat. Phys.20 (2), 181 (1979)
4. Holmes, P.: A nonlinear oscillator with a strange attractor. Department of Theoretical and Applied Mechanics, Cornell University (preprint)
5. Huberman, B., Crutchfield, J.: Chaotic states of anharmonic systems in periodic fields. Xerox Corp., Palo Alto Research Center (preprint)