@article{1093890998, author = {Morgan, Charles G.}, title = {Sentential calculus for logical falsehoods.}, journal = {Notre Dame J. Formal Logic}, volume = {14}, number = {1}, year = {1973}, pages = { 347-353}, language = {en}, url = {http://dml.mathdoc.fr/item/1093890998} }
Morgan, Charles G. Sentential calculus for logical falsehoods.. Notre Dame J. Formal Logic, Tome 14 (1973) no. 1, pp. 347-353. http://gdmltest.u-ga.fr/item/1093890998/