@article{1183741559,
author = {Ambos-Spies, Klaus},
title = {An Extension of the Nondiamond Theorem in Classical and $\alpha$-Recursion Theory},
journal = {J. Symbolic Logic},
volume = {49},
number = {1},
year = {1984},
pages = { 586-607},
language = {en},
url = {http://dml.mathdoc.fr/item/1183741559}
}
Ambos-Spies, Klaus. An Extension of the Nondiamond Theorem in Classical and $\alpha$-Recursion Theory. J. Symbolic Logic, Tome 49 (1984) no. 1, pp. 586-607. http://gdmltest.u-ga.fr/item/1183741559/