1. Ergodic Theory and Information;Billingsley,1965
2. Recent progress in ergodic theory;Halmos;Bull. Amer. Math. Soc.,1961
3. The marriage problem;Halmos;Amer. J. Math.,1950
4. A new metric invariant of transitive dynamic systems and automorphisms in Lebesgue spaces;Kolmogorov;Dokl. Akad. Nauk SSSR,1958
5. On the entropy per unit time as a metric invariant of automorphisms;Kolmogorov;Dokl. Akad. Nauk SSSR,1959