%0 Journal Article %A Roman Badora %T On some generalized invariant means and their application to the stability of the Hyers-Ulam type %J Annales Polonici Mathematici %D 1993 %P 147-159 %V 58 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-58-2-147-159/ %R 10.4064/ap-58-2-147-159 %G en %F 10_4064_ap_58_2_147_159