%0 Journal Article %A Katětov, Miroslav %T Extensions of the Shannon entropy to semimetrized measure spaces %J Commentationes Mathematicae Universitatis Carolinae %D 1980 %P 171-192 %V 21 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1980__21_1_a13/ %G en %F CMUC_1980__21_1_a13