@article{1093893713, author = {Meredith, C. A.}, title = {Equational postulates for the Sheffer stroke.}, journal = {Notre Dame J. Formal Logic}, volume = {10}, number = {1}, year = {1969}, pages = { 266-270}, language = {en}, url = {http://dml.mathdoc.fr/item/1093893713} }
Meredith, C. A. Equational postulates for the Sheffer stroke.. Notre Dame J. Formal Logic, Tome 10 (1969) no. 1, pp. 266-270. http://gdmltest.u-ga.fr/item/1093893713/