@article{1183733636,
author = {Hiz, H.},
title = {Extendible Sentential Calculus},
journal = {J. Symbolic Logic},
volume = {24},
number = {1},
year = {1959},
pages = { 193-202},
language = {en},
url = {http://dml.mathdoc.fr/item/1183733636}
}
Hiz, H. Extendible Sentential Calculus. J. Symbolic Logic, Tome 24 (1959) no. 1, pp. 193-202. http://gdmltest.u-ga.fr/item/1183733636/