@article{GDZPPN00203414X, title = {The algebraic uniqueness of the addition of natural numbers.}, journal = {Aequationes mathematicae}, volume = {25}, year = {1982}, pages = {269-273}, zbl = {0527.08001}, url = {http://dml.mathdoc.fr/item/GDZPPN00203414X} }
Rosinger, Elemer E. The algebraic uniqueness of the addition of natural numbers.. Aequationes mathematicae, Tome 25 (1982) pp. 269-273. http://gdmltest.u-ga.fr/item/GDZPPN00203414X/