An application of a functional equation to information theory P. Kannappan; P. N. Rathie — 1972 Annales Polonici Mathematici
Axiomatic characterizations of the measures of inaccuracy and information. H. Kaufman; P. N. Rathie — 1974 Collectanea Mathematica
Functional equations related to non-additive information measures A. Kamiński; P. N. Rathie; Lilian T. Sheng — 1984 Annales Polonici Mathematici