%0 Journal Article %A Kirchheim, Bernd %T A chaotic function with zero topological entropy having a non-perfect attractor %J Mathematica slovaca %D 1990 %P 267-272 %V 40 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MASLO_1990__40_3_a4/ %G en %F MASLO_1990__40_3_a4