@article{1183741968, author = {Richard, Denis}, title = {Answer to a Problem Raised by J. Robinson: the Arithmetic of Positive or Negative Integers is Definable From Successor and Divisibility}, journal = {J. Symbolic Logic}, volume = {50}, number = {1}, year = {1985}, pages = { 927-935}, language = {en}, url = {http://dml.mathdoc.fr/item/1183741968} }
Richard, Denis. Answer to a Problem Raised by J. Robinson: the Arithmetic of Positive or Negative Integers is Definable From Successor and Divisibility. J. Symbolic Logic, Tome 50 (1985) no. 1, pp. 927-935. http://gdmltest.u-ga.fr/item/1183741968/