@article{1183733291,
author = {Rogers, Hartley},
title = {Review: R. M. Friedberg, Two Recursively Enumerable Sets of Incomparable Degrees of Unsolvability (Solution of Post's Problem, 1944)},
journal = {J. Symbolic Logic},
volume = {23},
number = {1},
year = {1958},
pages = { 225-226},
language = {en},
url = {http://dml.mathdoc.fr/item/1183733291}
}
Rogers, Hartley. Review: R. M. Friedberg, Two Recursively Enumerable Sets of Incomparable Degrees of Unsolvability (Solution of Post's Problem, 1944). J. Symbolic Logic, Tome 23 (1958) no. 1, pp. 225-226. http://gdmltest.u-ga.fr/item/1183733291/