@article{1093894227, author = {Ellentuck, Erik}, title = {Incompleteness via simple sets.}, journal = {Notre Dame J. Formal Logic}, volume = {12}, number = {1}, year = {1971}, pages = { 255-256}, language = {en}, url = {http://dml.mathdoc.fr/item/1093894227} }
Ellentuck, Erik. Incompleteness via simple sets.. Notre Dame J. Formal Logic, Tome 12 (1971) no. 1, pp. 255-256. http://gdmltest.u-ga.fr/item/1093894227/