@article{1183733932, author = {Spector, Clifford}, title = {Review: Raymond M. Smullyan, Undecidability and Recursive Inseparability}, journal = {J. Symbolic Logic}, volume = {25}, number = {1}, year = {1960}, language = {en}, url = {http://dml.mathdoc.fr/item/1183733932} }
Spector, Clifford. Review: Raymond M. Smullyan, Undecidability and Recursive Inseparability. J. Symbolic Logic, Tome 25 (1960) no. 1, . http://gdmltest.u-ga.fr/item/1183733932/