@article{1093893714,
author = {Prior, A. N.},
title = {Propositional calculus in implication and non-equivalence.},
journal = {Notre Dame J. Formal Logic},
volume = {10},
number = {1},
year = {1969},
pages = { 271-272},
language = {en},
url = {http://dml.mathdoc.fr/item/1093893714}
}
Prior, A. N. Propositional calculus in implication and non-equivalence.. Notre Dame J. Formal Logic, Tome 10 (1969) no. 1, pp. 271-272. http://gdmltest.u-ga.fr/item/1093893714/