%0 Journal Article %A Z. Kareńska %T On a system of functional equations occurring in the theory of geometric objects %J Annales Polonici Mathematici %D 1980 %P 25-47 %V 37 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-37-1-25-47/ %R 10.4064/ap-37-1-25-47 %G en %F 10_4064_ap_37_1_25_47