%0 Journal Article %A K. Baron %A P. Kannappan %T On the Pexider difference %J Fundamenta Mathematicae %D 1990 %P 247-254 %V 134 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-134-3-247-254/ %R 10.4064/fm-134-3-247-254 %G en %F 10_4064_fm_134_3_247_254