%0 Journal Article %A P. Kasprowski %T On the existence of invariant measures for piecewise convex transformations %J Annales Polonici Mathematici %D 1981 %P 179-184 %V 40 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-40-2-179-184/ %R 10.4064/ap-40-2-179-184 %G en %F 10_4064_ap_40_2_179_184