%0 Journal Article %A Krystyna Ziemian %T Rate of convergence of conditional entropies for some maps of an interval %J Studia Mathematica %D 1989 %P 259-269 %V 93 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-93-3-259-269/ %R 10.4064/sm-93-3-259-269 %G en %F 10_4064_sm_93_3_259_269