@article{1093637777, author = {Ulrich, Dolph}, title = {A five-valued model of the $E$-$p$-$q$-theses.}, journal = {Notre Dame J. Formal Logic}, volume = {28}, number = {1}, year = {1987}, pages = { 137-138}, language = {en}, url = {http://dml.mathdoc.fr/item/1093637777} }
Ulrich, Dolph. A five-valued model of the $E$-$p$-$q$-theses.. Notre Dame J. Formal Logic, Tome 28 (1987) no. 1, pp. 137-138. http://gdmltest.u-ga.fr/item/1093637777/