@article{1195522290,
author = {Arai, Yoshinari and Is\'eki, Kiyoshi},
title = {On axiom systems of propositional calculi, VII},
journal = {Proc. Japan Acad.},
volume = {41},
number = {9},
year = {1965},
pages = { 667-669},
language = {en},
url = {http://dml.mathdoc.fr/item/1195522290}
}
Arai, Yoshinari; Iséki, Kiyoshi. On axiom systems of propositional calculi, VII. Proc. Japan Acad., Tome 41 (1965) no. 9, pp. 667-669. http://gdmltest.u-ga.fr/item/1195522290/