%0 Journal Article %A Elemer E. Rosinger %T The algebraic uniqueness of the addition of natural numbers. %J Aequationes mathematicae %D 1982 %P 269-273 %V 25 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1982__25_136970/ %F AM2_1982__25_136970