[[1] Behara M., Additive and Nonadditive Measures of Entropy, Wiley Eastern Limited, New Delhi-Bombay, 1990.]Search in Google Scholar
[[2] Chaundy T.W., Mcleod J.B., On a functional equation, Edinburgh Math. Notes. 43 (1960), 7-8.10.1017/S0950184300003244]Search in Google Scholar
[[3] Kannappan PL., Sahoo P.K., On a functional equation connected to sum form nonadditive information measures on an open domain-II, Glas. Mat. 22(42) (1987), 343-351.]Search in Google Scholar
[[4] Kocsis I., Maksa Gy., The stability of a sum form functional equation arising in information theory, Acta Math. Hungar. 79 (1998), no. 1-2, 39-48.]Search in Google Scholar
[[5] Losonczi L., Sum form equations on open domain, Utilitas Math. 29 (1986), 125-132.]Search in Google Scholar
[[6] Losonczi L., Maksa Gy., The general solution of a functional equation in information theory, Glas. Mat. 16(36) (1981), 261-266.]Search in Google Scholar
[[7] Maksa Gy., Páles Z., Hyperstability of a class of linear functional equations, Acta Math. Paed. Nyire 17 (2001), 107-112.]Search in Google Scholar
[[8] Nath P., On a functional equation and its relevance in information theory, in: Advances in Information Theory and Operations Research, Om Parkash (Ed.), VDM Verlag, Saarbrucken, Germany, 2010, pp. 1-14.10.1007/s00010-010-0057-7]Search in Google Scholar
[[9] Nath P., Singh D.K., On a sum form functional equation related to entropies and some moments of a discrete random variable, Demonstratio Math. 42 (2009), no. 1, 83-96.]Search in Google Scholar
[[10] Shannon C.E., A mathematical theory of communication, Bell. Syst. Tech. Jour. 27 (1948), 348-423; 623-656.10.1002/j.1538-7305.1948.tb00917.x]Search in Google Scholar
[[11] Tabor J., Stability of the Cauchy equation with variable bound, Publ. Math. Debrecen 51 (1997), 165-173.10.5486/PMD.1997.1849]Search in Google Scholar