@article{1195522343, author = {Is\'eki, Kiyoshi}, title = {On axiom systems of propositional calculi, IV}, journal = {Proc. Japan Acad.}, volume = {41}, number = {9}, year = {1965}, pages = { 575-577}, language = {en}, url = {http://dml.mathdoc.fr/item/1195522343} }
Iséki, Kiyoshi. On axiom systems of propositional calculi, IV. Proc. Japan Acad., Tome 41 (1965) no. 9, pp. 575-577. http://gdmltest.u-ga.fr/item/1195522343/