1. M. E. Borel, Les probabilités dénombrables et leurs applications arithmétiques, (French) [Countable probabilities and their arithmetic applications], Rendiconti del Circolo Matematico di Palermo, 27 (1909), 247-271.
2. A. Rényi, Representations for real numbers and their ergodic properties, Acta Mathematica Academiae Scientiarum Hungarica, 8 (1957), 477-493.
3. S. M. Ulam, J. von Neumann, On combination of stochastic and deterministic processes, Bull. Amer. Math. Soc., 53 (1947), 1120.
4. A. Lasota, M. C. Mackey, Chaos, Fractals and Noise: Stochastic Aspects of Dynamics, 2$^{\rm nd}$ edition, Springer-Verlag, New York, 1994.
5. A. Boyarsky, P. Góra, Laws of Chaos: Invariant Measures and Dynamical Systems in One Dimension, 1$^{\rm st}$ edition, Birkhäuser, Boston, 1997.