@article{1183734172, author = {Orey, Steven}, title = {Review: Hartley Rogers, Computing Degrees of Unsolvability}, journal = {J. Symbolic Logic}, volume = {25}, number = {1}, year = {1960}, pages = { 363-364}, language = {en}, url = {http://dml.mathdoc.fr/item/1183734172} }
Orey, Steven. Review: Hartley Rogers, Computing Degrees of Unsolvability. J. Symbolic Logic, Tome 25 (1960) no. 1, pp. 363-364. http://gdmltest.u-ga.fr/item/1183734172/