TY - JOUR AU - Giulio Pianigiani TI - Existence of invariant measures for piecewise continuous transformations JO - Annales Polonici Mathematici PY - 1981 SP - 39 EP - 45 VL - 40 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-40-1-39-45/ DO - 10.4064/ap-40-1-39-45 LA - en ID - 10_4064_ap_40_1_39_45 ER -