@article{1093891406,
author = {Goble, Louis F.},
title = {Gentzen systems for modal logic.},
journal = {Notre Dame J. Formal Logic},
volume = {15},
number = {1},
year = {1974},
pages = { 455-461},
language = {en},
url = {http://dml.mathdoc.fr/item/1093891406}
}
Goble, Louis F. Gentzen systems for modal logic.. Notre Dame J. Formal Logic, Tome 15 (1974) no. 1, pp. 455-461. http://gdmltest.u-ga.fr/item/1093891406/