@article{1093887542, author = {Georgacarakos, G. N.}, title = {Semantics for $S4.04$, $S4.4$, and $S4.3.2$.}, journal = {Notre Dame J. Formal Logic}, volume = {17}, number = {1}, year = {1976}, pages = { 297-302}, language = {en}, url = {http://dml.mathdoc.fr/item/1093887542} }
Georgacarakos, G. N. Semantics for $S4.04$, $S4.4$, and $S4.3.2$.. Notre Dame J. Formal Logic, Tome 17 (1976) no. 1, pp. 297-302. http://gdmltest.u-ga.fr/item/1093887542/