%0 Journal Article %A Katarzyna Horbacz %T Dynamical systems with multiplicative perturbations %J Annales Polonici Mathematici %D 1989 %P 11-26 %V 50 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-50-1-11-26/ %R 10.4064/ap-50-1-11-26 %G en %F 10_4064_ap_50_1_11_26