@article{1093893710,
author = {Zeman, J. Jay},
title = {Complete modalization in $S4.4$ and $S4.0.4$.},
journal = {Notre Dame J. Formal Logic},
volume = {10},
number = {1},
year = {1969},
pages = { 257-260},
language = {en},
url = {http://dml.mathdoc.fr/item/1093893710}
}
Zeman, J. Jay. Complete modalization in $S4.4$ and $S4.0.4$.. Notre Dame J. Formal Logic, Tome 10 (1969) no. 1, pp. 257-260. http://gdmltest.u-ga.fr/item/1093893710/