@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/