@article{1077375918, author = {Yates, C. E. M.}, title = {Three theorems on the degrees of recursively enumerable sets}, journal = {Duke Math. J.}, volume = {32}, number = {1}, year = {1965}, pages = { 461-468}, language = {en}, url = {http://dml.mathdoc.fr/item/1077375918} }
Yates, C. E. M. Three theorems on the degrees of recursively enumerable sets. Duke Math. J., Tome 32 (1965) no. 1, pp. 461-468. http://gdmltest.u-ga.fr/item/1077375918/