@article{1093893522,
author = {Cole, Richard},
title = {Definitional Boolean calculi.},
journal = {Notre Dame J. Formal Logic},
volume = {9},
number = {1},
year = {1968},
pages = { 343-350},
language = {en},
url = {http://dml.mathdoc.fr/item/1093893522}
}
Cole, Richard. Definitional Boolean calculi.. Notre Dame J. Formal Logic, Tome 9 (1968) no. 1, pp. 343-350. http://gdmltest.u-ga.fr/item/1093893522/