1. R. Artuso, E. Aurell and P. Cvitanovic, Recycling of strange sets: I. Circle expansion, II. Applications,Nonlinearity 3:325–386 (1990).
2. E. Aurell, On the metric properties of the Feigenbaum attractor,J. Stat. Phys. 47:439–458 (1987).
3. J. Balatoni and A. Rényi, Remarks on entropy,Publ. Math. Inst. Hung. Acad. Sci. 1:9–40 (1956) [in Hungarian with English summary]; English translation inSelected Papers of Alfréd Rényi, Vol. 1 (Akadémiai Kiadó, Budapest, 1976), pp. 558–586.
4. G. D. Birkhoff, Sur quelques courbes fermees remarquable,Bull. Soc. Math. France 60 (1932); also inCollected Papers, Vol. II (American Mathematical Society, Providence, Rhode Island, 1950), pp. 444–461.
5. P. Collet, J. L. Lebowitz, and A. Porzio, The dimension spectrum of some dynamical systems,J. Stat. Phys. 47:609–644 (1987).