@article{1183738758,
author = {Jockusch, Carl G. and Soare, Robert I.},
title = {Post's Problem and His Hypersimple Set},
journal = {J. Symbolic Logic},
volume = {38},
number = {1},
year = {1973},
pages = { 446-452},
language = {en},
url = {http://dml.mathdoc.fr/item/1183738758}
}
Jockusch, Carl G.; Soare, Robert I. Post's Problem and His Hypersimple Set. J. Symbolic Logic, Tome 38 (1973) no. 1, pp. 446-452. http://gdmltest.u-ga.fr/item/1183738758/