@article{1183737169,
author = {Yates, C. E. M.},
title = {Initial Segments of the Degrees of Unsolvability Part II: Minimal Degrees},
journal = {J. Symbolic Logic},
volume = {35},
number = {1},
year = {1970},
pages = { 243-266},
language = {en},
url = {http://dml.mathdoc.fr/item/1183737169}
}
Yates, C. E. M. Initial Segments of the Degrees of Unsolvability Part II: Minimal Degrees. J. Symbolic Logic, Tome 35 (1970) no. 1, pp. 243-266. http://gdmltest.u-ga.fr/item/1183737169/