@article{1195522378,
author = {Imai, Yasuyuki and Is\'eki, Kiyoshi},
title = {On axiom systems of propositional calculi, I},
journal = {Proc. Japan Acad.},
volume = {41},
number = {9},
year = {1965},
pages = { 436-439},
language = {en},
url = {http://dml.mathdoc.fr/item/1195522378}
}
Imai, Yasuyuki; Iséki, Kiyoshi. On axiom systems of propositional calculi, I. Proc. Japan Acad., Tome 41 (1965) no. 9, pp. 436-439. http://gdmltest.u-ga.fr/item/1195522378/