@article{1183741144,
author = {Cooper, S. B.},
title = {Partial Degrees and the Density Problem},
journal = {J. Symbolic Logic},
volume = {47},
number = {1},
year = {1982},
pages = { 854-859},
language = {en},
url = {http://dml.mathdoc.fr/item/1183741144}
}
Cooper, S. B. Partial Degrees and the Density Problem. J. Symbolic Logic, Tome 47 (1982) no. 1, pp. 854-859. http://gdmltest.u-ga.fr/item/1183741144/