[1] Aczel J.: Lectures on Functional Equations and their Applications. Academic Press, New-York 1966. MR 0208210 | Zbl 0139.09301

[2] Behara N., Nath P.: Additive and non-additive Entropies of Finite Measurable Partitions. Probability and Information Theory, Vol. 2. Springer-Verlag, Berlin 1973. LN in Math. Vol. 296, 102-138. MR 0379019 | Zbl 0282.94020

[3] Chaundy T. W., Mcleod J. B.: On a Functional Equation. Proc. Edin. Math. Soc. Notes 43, (I960), 7-8. MR 0151748 | Zbl 0100.32703

[4] Daroczy Z.: Generalized Information Functions. Information and Control 16 (1970), 36-51. MR 0272528 | Zbl 0205.46901

[5] Havrda J., Charvát E.: Quantification Method of Classification Processes. The Concept of Structural a-entropy, Kybernetika 3 (1967), 30-35. MR 0209067 | Zbl 0178.22401

[6] Halmos P. R.: Entropy in Ergodic Theory. University of Chicago, Chicago 1959.

[7] Parry W.: Entropy and Generators in Ergodic Theory. W. A. Benjamin, Inc., New York 1959. MR 0262464

[8] Renyi A.: On Measures of Entropy and Information. Proc. 4th Berk. Symp. on Math. Stat. and Prob. Vol. 1 (1967) 547-561. MR 0132570