@article{1093636011,
author = {Williamson, Timothy},
title = {An alternative rule of disjunction in modal logic.},
journal = {Notre Dame J. Formal Logic},
volume = {32},
number = {2},
year = {1991},
pages = { 89-100},
language = {en},
url = {http://dml.mathdoc.fr/item/1093636011}
}
Williamson, Timothy. An alternative rule of disjunction in modal logic.. Notre Dame J. Formal Logic, Tome 32 (1991) no. 2, pp. 89-100. http://gdmltest.u-ga.fr/item/1093636011/