@article{1195521662, author = {Tanaka, Sh\^otar\^o}, title = {On axiom systems of propositional calculi, XXV}, journal = {Proc. Japan Acad.}, volume = {43}, number = {5}, year = {1967}, pages = { 192-193}, language = {en}, url = {http://dml.mathdoc.fr/item/1195521662} }
Tanaka, Shôtarô. On axiom systems of propositional calculi, XXV. Proc. Japan Acad., Tome 43 (1967) no. 5, pp. 192-193. http://gdmltest.u-ga.fr/item/1195521662/