@article{1183734169,
author = {Hanf, William},
title = {Review: Hillary Putnam, R. M. Smullyan, Exact Separation of Recursively Enumerable Sets Within Theories},
journal = {J. Symbolic Logic},
volume = {25},
number = {1},
year = {1960},
language = {en},
url = {http://dml.mathdoc.fr/item/1183734169}
}
Hanf, William. Review: Hillary Putnam, R. M. Smullyan, Exact Separation of Recursively Enumerable Sets Within Theories. J. Symbolic Logic, Tome 25 (1960) no. 1, . http://gdmltest.u-ga.fr/item/1183734169/