%0 Journal Article %A Katětov, Miroslav %T Extended Shannon entropies. I %J Czechoslovak Mathematical Journal %D 1983 %P 564-601 %V 33 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1983.101914/ %R 10.21136/CMJ.1983.101914 %G en %F 10_21136_CMJ_1983_101914