%0 Journal Article %A Milosav M. Marjanović %A Zoran Kadelburg %T A reconsideration of: ``Number systems characterized by their operative properties'' %J The Teaching of Mathematics %D 2020 %P 81 %V XXIII %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM2_2020_XXIII_2_a0/ %G en %F TM2_2020_XXIII_2_a0