@article{1200690175, author = {Ohnishi, Masao}, title = {Gentzen decision procedures for Lewis's systems S2 and S3}, journal = {Osaka Math. J.}, volume = {13}, number = {1}, year = {1961}, pages = { 125-137}, language = {en}, url = {http://dml.mathdoc.fr/item/1200690175} }
Ohnishi, Masao. Gentzen decision procedures for Lewis's systems S2 and S3. Osaka Math. J., Tome 13 (1961) no. 1, pp. 125-137. http://gdmltest.u-ga.fr/item/1200690175/