@article{1093887933,
author = {Fitting, Melvin},
title = {A tableau system for propositional S5.},
journal = {Notre Dame J. Formal Logic},
volume = {18},
number = {1},
year = {1977},
pages = { 292-294},
language = {en},
url = {http://dml.mathdoc.fr/item/1093887933}
}
Fitting, Melvin. A tableau system for propositional S5.. Notre Dame J. Formal Logic, Tome 18 (1977) no. 1, pp. 292-294. http://gdmltest.u-ga.fr/item/1093887933/