TY - JOUR AU - Claudi Alsina TI - On the stability of a functional equation related to associativity JO - Annales Polonici Mathematici PY - 1991 SP - 1 EP - 5 VL - 53 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap-53-1-1-5/ DO - 10.4064/ap-53-1-1-5 LA - en ID - 10_4064_ap_53_1_1_5 ER -