@article{1093891497, author = {Fulton, James Andrew}, title = {Unary predicates.}, journal = {Notre Dame J. Formal Logic}, volume = {15}, number = {1}, year = {1974}, pages = { 635-638}, language = {en}, url = {http://dml.mathdoc.fr/item/1093891497} }
Fulton, James Andrew. Unary predicates.. Notre Dame J. Formal Logic, Tome 15 (1974) no. 1, pp. 635-638. http://gdmltest.u-ga.fr/item/1093891497/