%0 Journal Article %A Aggarwal, N. L. %A Picard, C. F. %T Functional equations and information measures with preference %J Kybernetika %D 1978 %P -181 %V 14 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1978__14_3_a1/ %G en %F KYB_1978__14_3_a1