@article{1183740511,
author = {Sato, Masahiko},
title = {A Cut-Free Gentzen-Type System for the Modal Logic S5},
journal = {J. Symbolic Logic},
volume = {45},
number = {1},
year = {1980},
pages = { 67-84},
language = {en},
url = {http://dml.mathdoc.fr/item/1183740511}
}
Sato, Masahiko. A Cut-Free Gentzen-Type System for the Modal Logic S5. J. Symbolic Logic, Tome 45 (1980) no. 1, pp. 67-84. http://gdmltest.u-ga.fr/item/1183740511/