%0 Journal Article %A Antoni Augustynowicz %T Some remarks on comparison functions %J Annales Polonici Mathematici %D 2009 %P 97-106 %V 96 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap96-2-1/ %R 10.4064/ap96-2-1 %G en %F 10_4064_ap96_2_1