@article{1093958754,
author = {Parsons, Charles},
title = {A propositional calculus intermediate between the minimal calculus and the classical.},
journal = {Notre Dame J. Formal Logic},
volume = {7},
number = {1},
year = {1966},
pages = { 353-358},
language = {en},
url = {http://dml.mathdoc.fr/item/1093958754}
}
Parsons, Charles. A propositional calculus intermediate between the minimal calculus and the classical.. Notre Dame J. Formal Logic, Tome 7 (1966) no. 1, pp. 353-358. http://gdmltest.u-ga.fr/item/1093958754/