%0 Journal Article %A Maciej Sablik %T The law of large numbers and a functional equation %J Annales Polonici Mathematici %D 1998 %P 165-175 %V 68 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-68-2-165-175/ %R 10.4064/ap-68-2-165-175 %G en %F 10_4064_ap_68_2_165_175