%0 Journal Article %A Parkash, Om %A Singh, R. S. %T On characterization of useful information-theoretic measures %J Kybernetika %D 1987 %P 245-251 %V 23 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1987__23_3_a5/ %G en %F KYB_1987__23_3_a5