@article{1183733000, author = {Davis, Martin}, title = {Review: Clifford Spector, On Degrees of Recursive Unsolvability}, journal = {J. Symbolic Logic}, volume = {22}, number = {1}, year = {1957}, pages = { 374-375}, language = {en}, url = {http://dml.mathdoc.fr/item/1183733000} }
Davis, Martin. Review: Clifford Spector, On Degrees of Recursive Unsolvability. J. Symbolic Logic, Tome 22 (1957) no. 1, pp. 374-375. http://gdmltest.u-ga.fr/item/1183733000/